Famotidine EP Impurity B

Name: Famotidine EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-006377

About Famotidine EP Impurity B

Vaqora Chemicals supplies Famotidine EP Impurity B, a pharmacopeial impurity of Famotidine registered under CAS number 89268-62-2. The compound has the formula C16H23N11O2S5, corresponding to a molecular weight of 561.8 g/mol. Alternative names: Famotidine dimer and Famotidine Related Compound B (USP).

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Famotidine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Famotidine EP Impurity B is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Famotidine

View every impurity, metabolite and intermediate we list for Famotidine.

Famotidine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Famotidine EP Impurity B
Catalogue No.	VQ-006377
CAS Number	89268-62-2
Other CAS	109467-08-5
IUPAC name	2-[4-[2-[5-[2-[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methylsulfanyl]ethyl]-1,1-dioxo-4H-1,2,4,6-thiatriazin-3-yl]ethylsulfanylmethyl]-1,3-thiazol-2-yl]guanidine
Molecular formula	C₁₆H₂₃N₁₁O₂S₅
Molecular weight	561.8 g/mol
Exact mass	561.064
Grade	Reference Standard
HSN code	38229090
InChIKey	NRRXZFHNRLQONH-UHFFFAOYSA-N
SMILES	C1=C(N=C(S1)N=C(N)N)CSCCC2=NS(=O)(=O)N=C(N2)CCSCC3=CSC(=N3)N=C(N)N
PubChem CID	13359055

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.1
H-bond donors / acceptors	5 / 12
TPSA	341 Å²
Synonyms	Famotidine dimer, Famotidine Related Compound B (USP), Famotidine Impurity B, Famotidine specified impurity B, Famotidine Related Compound B, Famotidine rela ted compound B, Famotidine USP Related Compound B, FaMotidine EP IMpurity B (USP RC B), bis(2,1-ethanediylthioMethylene-4,2-thiazolediyl)]bisguanidi, N,N'''-[(1,1-Dioxido-2H-1,2,4,6-thiatriazine-3,5-diyl)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Famotidine EP Impurity B?

The CAS Registry Number of Famotidine EP Impurity B is 89268-62-2. It is also known as Famotidine dimer, Famotidine Related Compound B (USP), Famotidine Impurity B.

What is the molecular formula and molecular weight of Famotidine EP Impurity B?

Famotidine EP Impurity B has the molecular formula C16H23N11O2S5 and a molecular weight of 561.8 g/mol.

What is Famotidine EP Impurity B used for?

Famotidine EP Impurity B is supplied as a characterised reference material related to Famotidine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Famotidine EP Impurity B can I order?

We supply Famotidine EP Impurity B in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Famotidine EP Impurity B?

Yes. Every lot of Famotidine EP Impurity B is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Famotidine EP Impurity B be shipped internationally?

Yes. Famotidine EP Impurity B is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.