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Merck

47869

Supelco

腈钴胺(维生素 B12)

analytical standard

别名:

维生素 B 12, α-(5,6-Dimethylbenzimidazolyl)cyanocobamide, CN-Cbl, Cyanocob(III)alamin, 氰钴胺

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100 MG
$105.00

$105.00


预计发货时间2025年4月21日详情


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100 MG
$105.00

About This Item

经验公式(希尔记法):
C63H88CoN14O14P
CAS号:
分子量:
1355.37
Beilstein:
4122889
EC號碼:
MDL號碼:
分類程式碼代碼:
12164500
PubChem物質ID:

$105.00


预计发货时间2025年4月21日详情


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等級

analytical standard

品質等級

CofA

current certificate can be downloaded

包裝

ampule of 100 mg

技術

HPLC: suitable
gas chromatography (GC): suitable

mp

>300 °C (decomposes before melting)

應用

pharmaceutical (small molecule)
vitamins, nutraceuticals, and natural products

形式

neat

儲存溫度

2-8°C

SMILES 字串

C/C(C1=N[C@]([C@]([C@H](CC(N)=O)[C@@]/2(C)CCC(NC[C@@H](OP([O-])(O[C@H]3[C@@H](O)[C@@H](N4C=[N]5C6=C4C=C(C)C(C)=C6)O[C@@H]3CO)=O)C)=O)([H])N([Co+]5C#N)C2=C(C)/C([C@@H](CCC(N)=O)C/7(C)C)=NC7=C/8)(C)[C@@](C)(CC(N)=O)[C@@H]1CCC(N)=O)=C9N=C8[C@@H](CCC(N)=O)[C@

InChI

1S/C62H90N13O14P.CN.Co/c1-29-20-39-40(21-30(29)2)75(28-70-39)57-52(84)53(41(27-76)87-57)89-90(85,86)88-31(3)26-69-49(83)18-19-59(8)37(22-46(66)80)56-62(11)61(10,25-48(68)82)36(14-17-45(65)79)51(74-62)33(5)55-60(9,24-47(67)81)34(12-15-43(63)77)38(71-55)23-42-58(6,7)35(13-16-44(64)78)50(72-42)32(4)54(59)73-56;1-2;/h20-21,23,28,31,34-37,41,52-53,56-57,76,84H,12-19,22,24-27H2,1-11H3,(H15,63,64,65,66,67,68,69,71,72,73,74,77,78,79,80,81,82,83,85,86);;/q;;+2/p-2/t31-,34-,35-,36-,37+,41-,52-,53-,56-,57?,59-,60+,61+,62+;;/m1../s1

InChI 密鑰

RMRCNWBMXRMIRW-QJRSUKKJSA-L

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一般說明

氰钴胺素(B12)是一种水溶性维生素,属于B12类维生素,通常被称为钴胺素。(1)主要存在于乳制品、肉类和蛋类等动物产品中。[1]它可以用于制备多种维生素补充剂和强化食品。[2]它作为辅酶可将L-甲基丙二酰辅酶A转化为琥珀酰辅酶A,该过程由异构酶进行催化。[2]

應用

有关合适的仪器技术的更多信息,请参阅产品′的分析证书。联系技术服务部以获得进一步支持。
氰钴胺(B12)可用作分析参考标准品,通过各种色谱技术测定药物制剂和食品中的分析物。[3][4][5][6][7][8]

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儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

個人防護裝備

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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如果您需要特殊版本,可通过批号或批次号查找具体证书。

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Determination of cyanocobalamin by isotope dilution LC-MS/MS
D-Ulivo L, et al.
Analytica Chimica Acta (2017)
Shreemathy V and Dandekar PS
Nutrition and Biochemistry for Nurses, (2) (2015)
Cyanocobalamin
European Pharmacopoeia Commission and European Directorate for the Quality of Medicines & Healthcare
European pharmacopoeia, 20(3), 2178-2179 (2014)
O Heudi et al.
Journal of chromatography. A, 1101(1-2), 63-68 (2005-10-12)
A new, faster and simple method to quantify Vitamin B12, both in foods and in premixes, by reversed-phase liquid chromatography with UV detection has been developed. Vitamin B12 was extracted from food products with 50 mM sodium acetate buffer pH
The assay of cyanocobalamin in pharmaceutical preparations by solid-phase extraction and HPLC
Jansen CC and De Kleijn JP
Journal of Chromatographic Science, 28(1), 42-45 (1990)

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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