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  • 26

    2021-07

    2021前半年 - 辰光 實驗室新品推薦③~~~人參系列~~~人參皂苷Rb1  41753-43-9  HPLC≥98%  人參  萜類化合物 C54H92O23  1109.307人參皂苷Rg1  22427-39-0  HPLC≥98%  人參  萜類化合物  C42H72O14  801.024  人參皂苷Rg5  186763-78-0  HPLC≥98%  人參  萜類化合物  C42H70O12  767.01人參皂苷Rg6  147419-93-0  HPLC≥98%  人參  萜類化合物  C42H70O12  767.01人參皂苷Rh3  105558-26-7  HPLC≥98%  人參  萜類化合物  C36H60O7  604.869人參皂苷Rh4  174721-08-5  HPLC≥98%  人參  萜類化合物  C36H60O8  620.868人參皂苷Rk1  494753-69-4  HPLC≥98%  人參  萜類化合物  C42H70O12  767.01人參皂苷Rk2  364779-14-6  HPLC≥98%  人參  萜類化合物  C36H60O7  604.87人參皂苷Rk3  364779-15-7  HPLC≥98%  人參  萜類化合物  C36H60O8  620.868       ——人參系列現貨:人參皂苷Rg1;人參皂苷Rg3(R+S);人參皂苷Rg4;人參皂苷Rg5;人參皂苷Rg6;20S-人參皂苷Rg2;20S-人參皂苷Rg3;20S-人參皂苷Rh1;20S-人參皂苷Rh2;人參皂苷Rb1;人參皂苷Rb2;人參皂苷Rb3;人參皂苷Rh3;人參皂苷Rh4;人參皂苷Rk1;人參皂苷Rk2;人參皂苷Rk3;人參皂苷Rc;人參皂苷Rd;人參皂苷Rd2;人參皂苷Re;人參皂苷Rf;人參總皂苷;20R-人參二醇;20R-人參三醇;20R-原人參二醇;20R-原人參三醇;20S-原人參二醇;20S-原人參三醇;人參環氧炔醇;人參皂苷CK;人參皂苷F1;人參皂苷F2;人參皂苷F3;人參皂苷F4;人參皂苷Ra3;偽人參皂苷F11;越南參皂苷R4(共38種)~~~菊花系列~~~木犀草素-7-葡萄糖醛酸苷  29741-10-4  HPLC≥98%  菊花/萵苣  黃酮類  C21H18O12  462.36 芹菜素-7-O-β-D-葡萄吡喃糖苷  578-74-5  HPLC≥98%    菊花/母菊/女貞  黃酮類  C21H20O10  432.4 金合歡素-7-O-BEITA-D-(6''-O-丙二酸單酰)-葡萄糖苷  N/A  HPLC≥97%  菊花  C25H24O13  532.45芹菜素-7-O-BEITA-D-(6''-O-丙二酸單酰)-葡萄糖  86546-87-4  HPLC≥98%  菊花  C24H22O23  518.43       ——菊花系列現貨:木犀草素-7-葡萄糖醛酸苷;芹菜素-7-O-β-D-葡萄吡喃糖苷;金合歡素-7-O-BEITA-D-(6''-O-丙二酸單酰)-葡萄糖苷 ;芹菜素-7-O-BEITA-D-(6''-O-丙二酸單酰)-葡萄糖 ~~~巖白菜系列~~~巖白菜素  477-90-7  HPLC≥98%  巖白菜  香豆素類  C14H16O9  328.27去甲巖白菜素  79595-97-4  HPLC≥98%  巖白菜  C13H14O9  314.25 ~~~獨活系列~~~茴芹內酯  131-12-4  HPLC≥98%   獨活  香豆素類  C13H10O5  246.22  6-甲氧基當歸素/牛防風素  483-66-9  HPLC≥98%  獨活  香豆素類  C12H8O4  216.19 
  • 21

    2021-07

    2021前半年 - 辰光 實驗室新品推薦②   ~~~虎杖系列~~~乙?;邹继J醇  42206-94-0  虎杖  二苯乙烯類  C20H18O6  354.36       ——虎杖系列現貨:白藜蘆醇;虎杖苷;乙?;邹继J醇;1,8-二羥基蒽醌;二氫白藜蘆醇 ~~~構樹系列~~~7,4'-二羥基-3'-異戊烯基黃烷   376361-96-5  HPLC≥97%  構樹  黃酮類  黃烷類  C20H22O3  310.39      ——構樹系列現貨:烏拉爾醇;小構樹醇A;Cathayanon H;inopodophylline B;楮樹黃酮醇F;5,7,3'-4'四羥基-3-甲氧基黃酮;7,4'-二羥基-3'-異戊烯基黃烷;亞油酸甲酯;對羥基苯甲酸(植物提?。?;D-苯丙氨酸(植物提?。?;L-色氨酸(植物提?。?;δ-生育酚(植物提?。ü?2種) ~~~柴胡系列~~~4''-O-乙酰柴胡皂苷A  N/A  HPLC≥95%  柴胡  萜類化合物  三萜類  C44H70O14  823.03      ——柴胡系列現貨:柴胡皂苷 A;柴胡皂苷B1;柴胡皂苷B2;柴胡皂苷B3;柴胡皂苷B4;柴胡皂苷C;柴胡皂苷D;柴胡皂苷F;柴胡皂苷H;柴胡皂苷S;柴胡皂苷元A;柴胡皂苷元D;4''-O-乙酰柴胡皂苷A(共12種) ~~~七葉/娑羅子系列~~~去乙酰七葉皂苷A  N/A  HPLC≥98%  娑羅子  萜類化合物  三萜類  C53H84O23  1089.23七葉皂苷D  219944-46-4  HPLC≥95%  娑羅子  萜類化合物  三萜類  C55H86O24  1131.27        ——七葉/娑羅子系列現貨:七葉皂苷D;原七葉皂苷元;去乙酰七葉皂苷A;21-當歸酰-原七葉樹苷元;Protoescigenin 21-tiglate ~~~杜仲系列~~~5'-甲氧基松脂素  40957-99-1  HPLC≥98%  杜仲/秦皮/板藍根  木脂素類  呋喃木脂素  C21H24O7  388.42(+)-丁香脂素/(+)-丁香樹脂酚  21453-69-0  HPLC≥98%  杜仲 木脂素類  C22H26O8  418.44   8-羥基松脂醇二葡萄糖苷  112747-99-6   HPLC≥98%   杜仲  C32H42O17  698.67橄欖脂素-4-O-葡萄糖苷  76880-93-8  HPLC≥97%  杜仲  C26H34O12  538.55       ——所有杜仲系列現貨:桃葉珊瑚苷/杜仲苷;松脂醇二葡萄糖苷;槲皮素-3-O-桑布雙糖苷;5'-甲氧基松脂素;(+)-丁香脂素/(+)-丁香樹脂酚 ;8-羥基松脂醇二葡萄糖苷;橄欖脂素-4-O-葡萄糖苷;綠原酸甲酯;松柏苷;松脂醇;二氫咖啡酸(共11種) ~~~山藥系列~~~Volucrin  130217-31-1  HPLC≥95%  山藥  C32H2608  538.55       ——山藥系列現貨:山藥素I;Volucrin ;2,7-二羥基-4,6-二甲基菲;3'-O-甲基山藥素III;山藥素Ⅲ;/3,3′-二羥基-5-甲氧基聯芐;山藥素IV ~~~黃芩系列~~~黃芩新素; 黃芩黃酮II  55084-08-7  HPLC≥98%  黃芩  黃酮類  C19H18O8  374.3456-羥基漢黃芩素;5,6,7-三羥基-8-甲氧基黃酮  76844-70-7  HPLC≥98%  黃芩  C16H12O6  300.27韌黃芩素I;5,2-二羥基-6-7-8-三甲基黃酮  N/A  HPLC≥98%  黃芩  C18H16O7  344.325,8-二羥基-6,7-二甲氧基黃酮  73202-52-5  HPLC≥98%  黃芩  C17H14O6  314.29        ——黃芩系列現貨:黃芩苷;黃芩素;漢黃芩苷;漢黃芩素;野黃芩苷;野黃芩素/高黃芩素;黃芩苷甲酯;黃芩新素/黃芩黃酮II;千層紙素A/木蝴蝶素;千層紙素/-7-0-β-D-葡萄糖醛酸苷;千層紙素A苷;韌黃芩素I/5,2-二羥基-6-7-8-三甲基黃酮;5,8-二羥基-6,7-二甲氧基黃酮;6-羥基漢黃芩素/5,6,7-三羥基-8-甲氧基黃酮;黃芩素-7-甲醚;2-羥基-3-甲基蒽醌;4-methyl-6-phenyl-2H-pyranone;4'-羥基漢黃芩素/5,7,4'-三羥基-8-甲氧基黃酮;四甲基高黃芩素;去甲漢黃芩素(共20種)
  • 15

    2021-07

    2021前半年 - 辰光 實驗室新品推薦①~~~蟾蜍系列~~~3-表日蟾毒它靈  N/A  HPLC98%  蟾蜍  蟾蜍二烯羥酸內酯  C24H34O5  402.53Argentinogenin   4236-48-0  HPLC99%  蟾蜍  蟾蜍二烯羥酸內酯  C24H30O6 414.53-羰基脂蟾毒配基  N/A  HPLC98%  蟾蜍  蟾蜍二烯羥酸內酯  C24H30O4  382.53-表脂蟾毒配基  N/A  HPLC99%  蟾蜍  蟾蜍二烯羥酸內酯  C24H32O4  384.52華蟾毒精-3-丁二?;?L-精氨酸脂  N/A  HPLC99%  蟾蜍  蟾蜍二烯羥酸內酯  C24H32O4  384.523-表華蟾毒精  N/A  HPLC99% 蟾蜍  蟾蜍二烯羥酸內酯  C26H34O6  442.553-羰基蟾毒靈  N/A  HPLC99%  蟾蜍  蟾蜍二烯羥酸內酯  C24H32O4  384.52嚏根草醇  508-79-2  蟾蜍  蟾蜍二烯羥酸內酯  C24H34O6  418.533-羰基華蟾毒精  N/A HPLC99%  蟾蜍  蟾蜍二烯羥酸內酯 C26H32O  440.54N-甲基五羥色胺  N/A  蟾蜍 蟾蜍二烯羥酸內酯  C11H14N2O 190.25蟾蜍噻嚀  N/A  HPLC95%  蟾蜍  蟾蜍二烯羥酸內酯  C12H15N2O3S+  267.32       所有蟾蜍系列現貨:蟾毒靈;蟾毒它靈/蟾蜍他靈;華蟾酥毒基;華蟾毒精;華蟾素\華蟾毒它靈;和蟾蜍他靈,日蟾毒它靈;遠華蟾毒精;酯蟾毒配基,蟾力蘇;南美蟾毒精;去乙酰華蟾毒精;去乙酰華蟾毒它靈;沙蟾蜍精;嚏根草醇;嚏根草配基;偽異沙蟾毒精;脂蟾毒精;19-羥基蟾毒靈;19-氧代華蟾毒它靈;1beta-羥基蟾毒靈;3-表華蟾毒精;3-表日蟾毒它靈;3-表脂蟾毒配基;3-羰基蟾毒靈;3-羰基華蟾毒精;3-羰基脂蟾毒配基;5BETA-羥基蟾毒它靈;5-羥色胺/五羥色胺;7BETA-羥基蟾毒靈;Argentinogenin;N-甲基五羥色胺;蟾蜍噻嚀;蟾蜍色胺;蟾蜍特尼定;去氫蟾蜍色胺;華蟾毒精-3-丁二?;?L-精氨酸脂;遠華蟾毒精-3-戊二酰-L-精氨酸脂;海蟾蜍精-3-辛二酰-L-谷酰胺酯(共36種)       ~~~藍莓系列~~~  矢車菊素-3-O-阿拉伯糖苷  792868-19-0 藍莓 黃酮類 花色素類 C20H19O10+  419.36矮牽牛素-3-O-葡萄糖苷  71991-88-3  HPLC98%  藍莓  黃酮類  花色素類  C22H23O12+ 479.41矮牽牛素-3-O-阿拉伯糖苷  N/A  藍莓  黃酮類  花色素類   C21H21O11+  449.39錦葵素-3-O-阿拉伯糖苷  N/A  藍莓  黃酮類  花色素類  C22H23O11+  463.41飛燕草素-3-O-阿拉伯糖苷  171370-55-1  HPLC94%  藍莓  黃酮類  花色素類  C20H19O11+ 435.36芍藥素-3-O-半乳糖苷  28148-89-2  HPLC93%  藍莓 黃酮類  花色素類  C22H23O11+  463.41矮牽牛素-3-O-半乳糖苷  28500-02-9  HPLC95%  藍莓  黃酮類  花色素類  C22H23O12+  479.41       所有藍莓系列現貨:矮牽牛素-3-O-阿拉伯糖苷;矮牽牛素-3-O-半乳糖苷;矮牽牛素-3-O-葡萄糖苷;錦葵素-3-O-阿拉伯糖苷;錦葵素-3-O-葡萄糖苷;芍藥素-3-O-半乳糖苷;矢車菊素-3-O-阿拉伯糖苷;飛燕草素-3-O-阿拉伯糖苷;飛燕草素-3-O-半乳糖苷;飛燕草素-3-O-葡萄糖苷;錦葵色素-3-半乳糖苷;氯化錦葵色素;氯化矮牽牛素(共13種)  ~~~遠志系列~~~  對香豆酸甲酯  19367-38-5  HPLC98%   遠志  苯丙素類  C10H10O3  178.19       所有遠志系列現貨:細葉遠志皂苷;對香豆酸甲酯;3,6-二芥子?;崽?;黃花遠志素A;遠志寡精A;遠志寡精H;遠志寡精J;遠志皂苷元;遠志蔗糖酯A;遠志蔗糖酯B;遠志蔗糖酯C/細葉遠志苷C;西伯利亞遠志口山酮A;西伯利亞遠志口山酮B;呫噸酮;3羥基, 1,3,7-, 2-C-β-D-葡萄糖苷;2'-O-beta;-D-芹菜糖基-西伯利亞遠志糖A5;西伯利亞遠志糖A6;遠志山酮III;遠志山酮XI;遠志酸;遠志皂苷B;1,2,3,7-四甲氧基呫噸酮(共20種)   ~~~連翹系列~~~  表松脂素-4-O-葡萄糖苷  24404-49-7  HPLC97%  連翹  木脂素類  C26H32O11 520.53(+)-表松脂素  24404-50-0  HPLC98%  連翹  木脂素類  C20H22O6  358.39       所有連翹系列現貨:連翹苷;連翹脂素;連翹酯苷/連翹酯苷A;連翹酯苷B;連翹酯苷E;連翹酯苷F/三糖苯丙素苷;連翹酯苷H;連翹酯苷I;金絲桃素;對羥基苯乙酸甲酯;表松脂素-4-O-葡萄糖苷;(+)-表松脂素-4prime;-O-beta;-D-葡萄糖苷;羅漢松酯素/羅漢松樹脂酚;"(+)-松脂醇-β-D-吡喃葡萄糖苷;連翹脂素-4'-O-beta;-D-葡萄糖苷(共14種)  ~~~巴戟天系列~~~  1F-果呋喃糖基耐斯糖,蔗果五糖  59432-60-9  HPLC98%  巴戟天  糖類  C30H52O26  828.72       巴戟天系列現貨:耐斯糖;水晶蘭苷;異嗪皮啶;1F-果呋喃糖基耐斯糖,蔗果五糖;甲基異茜草素-1-甲醚;茜草素-1-甲醚(共6種)  ~~~杜鵑系列~~~  去甲杜鵑素  14348-16-4  HPLC98%  杜鵑  黃酮類  黃酮類/二氫黃酮類  C16H14O5  286.283       杜鵑系列現貨:杜鵑素;去甲杜鵑素;杜鵑醇;裂葉苣莢菜內脂      
  • 26

    2021-05

    遠志稀有成分: 遠志寡精A;遠志寡精H;遠志寡精J;遠志蔗糖酯A;遠志蔗糖酯B;遠志蔗糖酯C,                           細葉遠志苷C;黃花遠志素A;3,6’-二芥子?;崽?;對香豆酸甲酯;細葉遠志皂苷遠志寡精H   92%  獨家新品遠志寡精J    98%  獨家新品 細葉遠志皂苷   98%  克級Tenuifoliose H CAS號: 1147742-13-0 分子式: C61H74O34  分子量: 1351.23g/mol 外  觀:白色粉末 分  類: 寡糖酯類 來  源: 遠志Tenuifoliose J CAS號: 147742-14-1 分子式: C59H72O33   分子量: 1308.4g/mol 外  觀:白色粉末 分  類: 寡糖酯類 來  源: 遠志Tenuifolin CAS號: 20183-47-5 分子式: C36H56O12 分子量: 680.82g/mol 外  觀:白色粉末 分  類: 萜類 來  源: 遠志遠志蔗糖酯A   95%   獨家新品遠志蔗糖酯B 95%  獨家新品遠志蔗糖酯C;細葉遠志苷C 98% 新品Tenuifoliside A CAS號: 139726-35-5 分子式: C31H38O17 分子量: 682.23g/mol 外  觀:類白色粉末 分  類: 寡糖酯類 來  源: 遠志Tenuifoliside B CAS號: 139726-36-6 分子式: C30H36O17  分子量: 668.6g/mol 外  觀:白色粉末 分  類: 寡糖酯類 來  源: 遠志Tenuifoliside C CAS號: 139726-37-7 分子式: C35H44O19 分子量: 768.72g/mol 外  觀:白色粉末 分  類: 寡糖酯類 來  源: 遠志黃花遠志素A   95%    獨家新品3,6’-二芥子?;崽?nbsp;98%  克級對香豆酸甲酯 98%  獨家新品Arillanin A CAS號: 154287-47-5 分子式: C33H40O18 分子量: 724.67g/mol 外  觀:白色粉末 分  類: 寡糖酯類 來  源: 遠志3,6’-disinapoyl sucrose CAS號: 139891-98-8 分子式: C34H42O19 分子量: 754.691g/mol 外  觀:淡黃色粉末 分  類: 苯丙素類 來  源: 遠志Methyl p-coumarate CAS號: 19367-38-5 分子式: C10H10O3 分子量: 178.19g/mol 外  觀:白色粉末 分  類: 寡糖酯類 來  源: 遠志黃芩稀有成分: 6-羥基漢黃芩素,5,6,7-三羥基-8-甲氧基黃酮;韌黃芩素I ,5,2-二羥基-6-7-8-三甲基黃酮;                           5,8-二羥基-6,7-二甲氧基黃酮;黃芩新素,黃芩黃酮II,黃芩新素II;木蝴蝶苷B;                           千層紙素A-7-0-β-D-葡萄糖醛酸苷;千層紙素A;黃芩素;                           漢黃芩素;野黃芩素黃芩苷;漢黃芩苷;野黃芩苷,燈盞花乙素5,8-二羥基-6,7-二甲氧基黃酮     新品 6-羥基漢黃芩素; 5,6,7-三羥基-8-甲氧基黃酮  新品 韌黃芩素I; 5,2-二羥基-6-7-8-三甲基黃酮 新品5,8-Dihydroxy-6,7-dimethoxyflavone  CAS號: 73202-52-5 分子式: C17H14O6 分子量: 314.29g/mol 外  觀:黃色粉末 分  類: 黃酮類 來  源: 黃芩6-Hydroxywogonin; 5,6,7-trihydroxy-8-methoxyflavone  CAS號: 76844-70-7 分子式: C16H12O6 分子量: 300.27g/mol 外  觀:黃色粉末 分  類: 黃酮類 來  源: 黃芩Tenaxin I;5,2'-Dihydroxy-6,7,8-trimethoxyflavone  CAS號: 86926-52-5 分子式: C18H16O7 分子量: 344.32g/mol 外  觀:黃色粉末 分  類: 黃酮類 來  源: 黃芩黃芩新素,黃芩黃酮II   98% 新品 黃芩黃酮;半枝蓮種素  98% 新品 木蝴蝶苷B     98%  克級Skullcapflavone II CAS號: 55084-08-7 分子式: C19H18O8 分子量: 374.345g/mol 外  觀:黃色粉末 分  類: 黃酮類 來  源: 黃芩Rivularin CAS號: 70028-59-0 分子式: C18H16O7  分子量: 344.319g/mol 外  觀:黃色粉末 分  類: 黃酮類 來  源: 黃芩Oroxin B CAS號: 114482-86-9 分子式: C27H30O15 分子量: 594.522g/mol 外  觀:黃色粉末 分  類: 黃酮類 來  源: 黃芩杜仲稀有成分: 8-羥基松脂醇二葡萄糖苷;橄欖脂素-4-O-葡萄糖苷;(+)-丁香脂素,(+)-丁香樹脂酚;                           5'-甲氧基松脂素,皮樹脂醇;槲皮素-3-O-桑布雙糖苷;桃葉珊瑚苷,杜仲苷8-羥基松脂醇二葡萄糖苷   新品 橄欖脂素-4-O-葡萄糖苷   97%新品 (+)-丁香脂素,(+)-丁香樹脂酚  98%8-Hydroxypinoresinol diglucoside  CAS號: 112747-99-6 分子式: C32H42O17 分子量: 698.67g/mol 外  觀:白色粉末 分  類: 糖苷類 來  源: 杜仲Olivil 4'-O-glucoside  CAS號: 76880-93-8 分子式: C26H34O12 分子量: 538.55g/mol 外  觀:白色粉末 分  類: 糖苷類 來  源: 杜仲(+)-Syringaresinol CAS號: 21453-69-0 分子式: C22H26O8 分子量: 418.44g/mol 外  觀:白色粉末 分  類: 木脂素類 來  源: 杜仲菊花稀有成分: 金合歡素-7-O-BEITA-D-(6''-O-丙二酸單酰)-葡萄糖苷;                           芹菜素-7-O-BEITA-D-(6''-O-丙二酸單酰)-葡萄糖 獨活稀有成分:茴芹內酯金合歡素-7-O-BEITA-D-(6''-O- 丙二酸單酰)-葡萄糖苷   97% 新品芹菜素-7-O-BEITA-D-(6''-O- 丙二酸單酰)-葡萄糖    新品 茴芹內酯   98%  克級Acacetin-7-O-6"-malonylglucoside  CAS號: N/A 分子式: C25H24O13 分子量: 532.45g/mol 外  觀:粉末 來  源: 菊花Apigenin-7-O-6''-Malonylglucoside  CAS號: 86546-87-4 分子式: C24H22O23 分子量: 518.43g/mol 外  觀:粉末 來  源: 菊花Pimpinellin CAS號: 131-12-4 分子式: C13H10O5 分子量:246.22g/mol 外  觀:粉末 來  源: 獨活
  • 03

    2021-03

    辰光生物 人參制備分離 單峰 高純度對照品

常見問題解答

FAQ 更多+
  • Conditions for Making a Reference Standard Return

    • The product(s) must be unopened and in its original packaging.

    • The product(s) must be stored appropriately, as indicated on the certificate of analysis.

    • In the case the return is being requested due to an error on Herbest’s behalf, we will investigate the root cause of the error. If it is deemed a Herbest error, the product(s) can be returned regardless if it meets the conditions above or not.

    Restocking and Shipping Fees

    • All returns are subject to a 20% restocking fee (unless deemed a Herbest error after investigation).

    • Shipping fees will not be refunded unless the cause for the return was found to be an error on Herbest’s part.

    Return Instructions

    1.  In order to initiate a return, please contact your Herbest representative and provide the       following information:

    • The invoice document number for purchase

    • The lot number(s) for the product(s) intended to be returned

    • Reason for return of the product(s)

    2.  After receiving the information listed above, your herbest representative will generate a  return number  for you to authorize the return.

    3. Once the return number is received, please ship the product(s) with the return number (RTN) referenced on the package. Ensure the product(s) is/are appropriately packaged and stored (i.e. -20oC stored items need to be shipped overnight with an icepack, -80oC items with dry ice). The shipment will be made out to the following address:

    Baoji Herbest Bio-Tech Co.,Ltd

    Attn:[herbest representative]

    BaoTao Road Baoji City Shannxi provience China (zip: 721013)

    Tel:+86-917-8888998

    4. Once the product(s) is/are received and inspected, your representative will issue a return (RTN) document receipt. This document will reflect the funds credited back to you for return of the product(s), minus any applicable restocking or shipping fees. Purchases made via prepayment or NET 30 will have a credit memo for the balance added to their account.

  • Herbest supplies a wide range of phytochemical reference standards to highly specialized and very rare phytochemicals available in extremely small quantities in nature. Our specialtis making all of these products available to the industry with extensive testing and characterization data on each.   Herbest committed to providing our customers with cost effective, high quality reference  tandards. We strive to provide that influence how long it will take to fill any individual order and we hope this information will assist you in understanding our production process and lead time estimates.

    Production Phase 1 :Starting Materials

    The first phase in our production process is to acquire the necessary starting materials. In the case that the compound will be isolated directly from plant material, we must first acquire the relevant biomass. Availability of suitable biomass can vary widely and might require waiting for the next harvest time to maximize the level of the target phytochemical. Growing and harvest conditions can dramatically affect the phytochemical content and in extreme cases, normally prominent target compounds might be missing entirely from a particular harvest. This certainly can complicate the production process. All biomass materials have to be verified for compliance with Herbest quality requirements. Compounds 

    produced synthetically also require properly qualified starting materials. In this case, the commercial availability of the starting materials directly affects our ability to begin the production process.

    Production Phase 2: Production of Target Compound

    Once all the starting materials are received and qualified, we can begin with the production of the target compound. Depending on production prioritization, some materials may have to wait in the production queue before work begins. Both isolation and synthesis productions are typically multistep processes and can take from just a few days to several weeks to complete the whole process. Usually production steps proceed smoothly but sometimes unanticipated technical challenges can arise.  

    Production Phase 3: Quality Testing and Verification

    In this phase, the isolated or synthesized materials are tested and verified. The results must meet the final identity, purity, and quality requirements for the desired product. The data package from this characterization testing is then used to generate the product certificate of analysis (C of A) appropriate to the product grade. The C of A then undergoes a formal review by the Quality Assurance group that operates independently of the chemists performing the tests and preparing the documentation. Oncethe C of A is completed, the material can then go into stock and orders are filled. Usually quality testing and verification is a smooth process but in some cases, material that was promising during Phase 2, will fail final requirements during Phase 3 testing in which case, the process must start over.


    Herbest takes pride in providing its customers with the highest quality natural product reference standards available to the industry.Please contact your Technical Sales Representative with any additional questions you may have.




  • Herbest reference standards are supplied in the powder, crystal, liquid, or oily form. The reference standards may also be supplied in various containment forms including screw top vials, crimp top vials, or sealed ampules (depending on the best form of enclosure determined by Herbest). This can present a recovery challenge when the material clings to the insides of the sample bottle/vial. Proper handling is especially important with small amounts where a greater percentage of the sample may be clinging to the sides of the bottle, screw cap or sto per. Please note that Herbest  does not recommend scraping the vial because sample recovery will be quite low. The following procedure for sample handling will allow for the greatest recoveries and proper dilution. Please note: Oily or liquid standards can be difficult to see and the bottle may appear empty. Examples of such oily standards are: Gingerol, Pinane, Shogaol,Rosin and Bakuchiol.

    Proper Standard Material Recovery and Dilution Procedure:

    1. Use a 5 decimal place (0.00001g) analytical balance for weighing.

    2. Weigh the full sample bottle and vial cap.

    3. Record the exact weight of the full bottle and cap/stopper, in your laboratory notebook.

    4. Remove the screw top of the vial and add about 1mL of the appropriate solvent to the sample bottle and immediately replace the cap/stopper. If the bottle/vial has a crimp top, draw 1ml of the appropriate solvent into a clean syringe (with a rigid needle tip) and pierce the crimp top septum and expel the 1ml of solvent into the vial.

    5. Shake the bottle/vial multiple times over 5 minutes and allow the standard to completely dissolve.

    6. Open the screw/crimp top vial and pipette or pour the dissolved standard from the bottle into a volumetric flask (Crimp top vial will need a crimp top remover tool).

    7. Use an appropriately sized volumetric flask for the sample dilution.

    8. Rinse the bottle/vial and cap/stopper each into the volumetric flask three times.

    9. Completely dry the empty bottle and cap/stopper under nitrogen flow.

    10. Weigh the, now empty, dried bottle and cap/stopper and record the weight in your laboratory notebook. 

    11. Partially fill the volumetric flask with the chosen solvent and mix thoroughly.

    12. Then dilute to the mark and mix again by inverting several times.

    13. Calculate the total weight of standard removed from the bottle/vial by subtracting the dry weight from the original weight.

    14. Calculate the concentration of the diluted standard by dividing the calculated standard weight (from step above) by the volume of the volumetric flask.

    15. Consider portioning off your diluted standard into smaller bottles for later use and to prevent contamination of your standard solution.

    16. Ideally, store the reference standard solution in a cool, dry place out of light per recommended storage conditions found on the Certificate of Analysis and/or label.

    please contact Herbest with any further questions about proper sample handling specific to your use.




  • Herbest is pleased to offer a wide range of reference standards in our phytochemical catalog. All materials listed are supplied either neat or in solution and sold by either a weight or volume quantity. Sometimes our clients have questions about how much product is in each bottle or ampoule. This FAQ should help to address such questions.

    Herbest overfills each unit of product by up to 0.2 mg. This typically means that a 5mg unit may contain between 5.0 and 5.2mg of material; a 10mg unit contains between 10.0 and 10.2mg of material. Products sold by volume are overfilled by 0.1ml.

    The use of accurate weight measurements and fully characterized Primary grade reference standards is crucial for proper quantitative analysis. A five place balance (measuring accurately to 0.00005mg) is required for use in quantitative work.

    Herbest recommends that a “weigh by difference” technique be used when preparing your reference standard solutions for use in the laboratory. Especially when dealing with oily, sticky, fluffy, or static prone compounds, improper handling can result in large losses of material between the original packaging and the prepared solution in your laboratory.Because of potential material loss in transferring by the end user, Herbest does not supply an exact weight value for each unit of reference standard. Even if an exact weight was supplied, the end user must accurately weigh the amount of product that goes into their standard preparation as this minimizes analytical error.

    For special projects, Herbest can supply exact weights per vial when requested by our clients. An additional fee may apply in such cases. Please contact your herbest sales representative for more information if this service would be useful for you.

    Herbest packages all items carefully to minimize any product loss. However, sometimes shipping conditions beyond our control can cause leakage or an otherwise reduced quantity of material. If you suspect that your order contains less material than it should, please first follow the weighing protocol as detailed in  Herbest Recovery and Dilution Procedures. If after using this protocol, you cannot verify the correct quantity, please contact your Herbest sales representative with the weight measurements and any photos showing bottle leakage that might help us in trouble shooting the issue.

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