Pharmacopeial Impurities (EP / USP / BP)

Biotin EP Impurity B

Name: Biotin EP Impurity B
Brand: Zemixal
SKU: ZX-020878

Reference StandardAvailable on request

Biotin EP Impurity B (CAS 57671-79-1) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-020878.

Pack sizes

CAS number57671-79-1

FormulaC₁₁H₁₆N₂O₅S

Molar mass288.32 g/mol

Physical formSolid

HS code38229090

InChIKeyXWJBVGZSIAZDKJ-FXQIFTODSA-N

IUPAC name2-[3-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]propyl]propanedioic acid

About Biotin EP Impurity B

Analytical teams working on Biotin use Biotin EP Impurity B as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 57671-79-1, formula C11H16N2O5S and molar mass 288.32 g/mol. It is handled as a solid.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Biotin

See every impurity, metabolite and related compound we list for this API.

Biotin standards

Typical uses

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Biotin EP Impurity B
Product name	Biotin EP Impurity B
Catalogue number	ZX-020878
CAS number	57671-79-1
IUPAC name	2-[3-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]propyl]propanedioic acid
Molecular formula	C₁₁H₁₆N₂O₅S
Molar mass	288.32 g/mol
Exact mass	288.078
Grade	Reference Standard
Physical form	Solid
XLogP3	0.1
H-bond donors / acceptors	4 / 6
Topological polar surface area	141 Å²
HS code	38229090
InChIKey	XWJBVGZSIAZDKJ-FXQIFTODSA-N
SMILES	C1[C@H]2[C@@H]([C@@H](S1)CCCC(C(=O)O)C(=O)O)NC(=O)N2
PubChem CID	22865898
Synonyms	Biotin Diacid, 2-(3-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)propyl)malonic acid, Biotin Impurity B, 2-{3-[(3aS,4S,6aR)-2-oxo-hexahydro-1H-thieno[3,4-d]imidazol-4-yl]propyl}propanedioic acid, 2-[3-[(3aS,4S,6aR)-Hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]propyl]propanedioic Acid, {3-[(3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]propyl}propanedioic acid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Biotin EP Impurity B
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Biotin EP Impurity B

Which CAS number identifies Biotin EP Impurity B?

Biotin EP Impurity B is registered under CAS 57671-79-1. You may also see it listed as Biotin Diacid, 2-(3-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)propyl)malonic acid, Biotin Impurity B. Our catalogue number for this item is ZX-020878.

What are the formula and molar mass of Biotin EP Impurity B?

For Biotin EP Impurity B, its formula is C11H16N2O5S and its molar mass is 288.32 g/mol. The systematic (IUPAC) name is 2-[3-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]propyl]propanedioic acid. InChIKey XWJBVGZSIAZDKJ-FXQIFTODSA-N lets you match it in any structure database.

How is Biotin EP Impurity B used in pharmaceutical QC?

Biotin EP Impurity B is a characterised reference material linked to Biotin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Biotin EP Impurity B?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Biotin EP Impurity B?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Biotin EP Impurity B to my country?

Yes. Biotin EP Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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Formula: C₁₁H₁₈N₂O₃S
MW: 258.34 g/mol

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CAS: 57229-92-2
Formula: C₁₇H₂₂N₂O₃S
MW: 334.4 g/mol

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Biotin EP Impurity F

CAS: 101469-35-6
Formula: C₂₉H₃₆N₂O₅S
MW: 524.7 g/mol

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(+)-Biotin (+)-Sulfoxide

CAS: 10406-89-0
Formula: C₁₀H₁₆N₂O₄S
MW: 260.31 g/mol

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Nitrosobiotin

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Formula: C₁₀H₁₅N₃O₄S
MW: 273.31 g/mol

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