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Pharmacopeial Impurities (EP / USP / BP)

Diphenhydramine EP Impurity B

Reference StandardAvailable on request

Buy Diphenhydramine EP Impurity B (CAS 4024-34-4) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-033321.

Pack sizes
Diphenhydramine EP Impurity B chemical structure
CAS number4024-34-4
FormulaC18H24ClNO
Molar mass305.8 g/mol
Physical formSolid
HS code38229090
InChIKeyBNFDLGUZDIWYJK-UHFFFAOYSA-N
IUPAC nameN,N-dimethyl-2-[(4-methylphenyl)-phenylmethoxy]ethanamine;hydrochloride

About Diphenhydramine EP Impurity B

Diphenhydramine EP Impurity B is supplied by Zemixal as a characterised reference material for Diphenhydramine analysis. Identity at a glance (Reference Standard): CAS 4024-34-4, formula C18H24ClNO and molar mass 305.8 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Handling and storage

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

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Diphenhydramine

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

Diphenhydramine standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Diphenhydramine EP Impurity B
Product nameDiphenhydramine EP Impurity B
Catalogue numberZX-033321
CAS number4024-34-4
IUPAC nameN,N-dimethyl-2-[(4-methylphenyl)-phenylmethoxy]ethanamine;hydrochloride
Molecular formulaC18H24ClNO
Molar mass305.8 g/mol
Exact mass305.1546
GradeReference Standard
Physical formSolid
H-bond donors / acceptors1 / 2
Topological polar surface area12.5 Ų
HS code38229090
InChIKeyBNFDLGUZDIWYJK-UHFFFAOYSA-N
SMILESCC1=CC=C(C=C1)C(C2=CC=CC=C2)OCCN(C)C.Cl
PubChem CID16206677
SynonymsDiphenhydramine Impurity B, Dimenhydrinate - Impurity G, Diphenhydramine - Impurity B, Orphenadrine - Impurity F, Neobenodine, p-Methyl diphenhydramine hydrochloride, Ethylamine, N,N-dimethyl-2-((p-methyl-alpha-phenylbenzyl)oxy)-, hydrochloride, 4-Methyldiphenhydramine Hydrochloride, 2-[(RS)-(4-Methylphenyl)phenylmethoxy]-N,N-dimethylethanamine hydrochloride, Chlorhydrate de dimethylaminoethoxy-p-tolylphenyl-methane gauche, (+)-N,N-Dimethyl-2-(phenyl(p-tolyl)methoxy)ethylamine hydrochloride

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 Diphenhydramine EP Impurity B
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 Diphenhydramine EP Impurity B

Which CAS number identifies Diphenhydramine EP Impurity B?
Diphenhydramine EP Impurity B is registered under CAS 4024-34-4. You may also see it listed as Diphenhydramine Impurity B, Dimenhydrinate - Impurity G, Diphenhydramine - Impurity B. Our catalogue number for this item is ZX-033321.
What are the formula and molar mass of Diphenhydramine EP Impurity B?
For Diphenhydramine EP Impurity B, its formula is C18H24ClNO and its molar mass is 305.8 g/mol. InChIKey BNFDLGUZDIWYJK-UHFFFAOYSA-N lets you match it in any structure database.
How is Diphenhydramine EP Impurity B used in pharmaceutical QC?
Diphenhydramine EP Impurity B is a characterised reference material linked to Diphenhydramine. 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 Diphenhydramine 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 Diphenhydramine 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 Diphenhydramine EP Impurity B to my country?
Yes. Because Diphenhydramine EP Impurity B 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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