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Pharmacopeial Impurities (EP / USP / BP)

Famotidine EP impurity E

Reference StandardAvailable on request

Buy Famotidine EP impurity E (CAS 129083-44-9) from Zemixal: C10H14N8S4, COA and SDS with every lot, worldwide shipping.

Pack sizes
Famotidine EP impurity E chemical structure
CAS number129083-44-9
FormulaC10H14N8S4
Molar mass374.5 g/mol
Physical formSolid
HS code38229090
InChIKeyZWHJVLVEEDAPHN-UHFFFAOYSA-N
IUPAC name2-[4-[[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methyldisulfanyl]methyl]-1,3-thiazol-2-yl]guanidine

About Famotidine EP impurity E

Famotidine EP impurity E is supplied by Zemixal as a characterised reference material for Famotidine analysis. Key data (Reference Standard): CAS 129083-44-9, formula C10H14N8S4 and molar mass 374.5 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. 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 Famotidine

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

Famotidine standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Famotidine EP impurity E
Product nameFamotidine EP impurity E
Catalogue numberZX-024675
CAS number129083-44-9
IUPAC name2-[4-[[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methyldisulfanyl]methyl]-1,3-thiazol-2-yl]guanidine
Molecular formulaC10H14N8S4
Molar mass374.5 g/mol
Exact mass374.0224
GradeReference Standard
Physical formSolid
XLogP3-0.3
H-bond donors / acceptors4 / 8
Topological polar surface area262 Ų
HS code38229090
InChIKeyZWHJVLVEEDAPHN-UHFFFAOYSA-N
SMILESC1=C(N=C(S1)N=C(N)N)CSSCC2=CSC(=N2)N=C(N)N
PubChem CID71314076
SynonymsFamotidine - Impurity E, Famotidine disulfide, Famotidine Impurity E, 2,2'-(Disulfanediylbis(methylenethiazole-4,2-diyl))diguanidine, Guanidine, N,N'''-(dithiobis(methylene-4,2-thiazolediyl))bis-, Bis[(2-guanidino-4-thiazolyl)methyl]disulfide, 2,2'-[Disulfanediylbis-(methylenethiazole-4,2-diyl)]diguanidine, Bis[( (2-guanidino)-4-thiazolyl)methyl]disulfide, N,N''-[dithiobis(methylene-4,2-thiazolediyl)]bis-guanidine, Bis-[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]disulfide, bis-[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]disulphide, 2,2'-((disulfanediylbis(methylene))bis(thiazole-4,2-diyl))diguanidine

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Famotidine EP impurity E
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

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

Questions about Famotidine EP impurity E

Which CAS number identifies Famotidine EP impurity E?
Famotidine EP impurity E is registered under CAS 129083-44-9. You may also see it listed as Famotidine - Impurity E, Famotidine disulfide, Famotidine Impurity E. Our catalogue number for this item is ZX-024675.
What are the formula and molar mass of Famotidine EP impurity E?
For Famotidine EP impurity E, its formula is C10H14N8S4 and its molar mass is 374.5 g/mol. The systematic (IUPAC) name is 2-[4-[[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methyldisulfanyl]methyl]-1,3-thiazol-2-yl]guanidine. InChIKey ZWHJVLVEEDAPHN-UHFFFAOYSA-N lets you match it in any structure database.
How is Famotidine EP impurity E used in pharmaceutical QC?
Famotidine EP impurity E is a characterised reference material linked to Famotidine. 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 Famotidine EP impurity E?
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 Famotidine EP impurity E?
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 Famotidine EP impurity E to my country?
Yes. Because Famotidine EP impurity E is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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