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N-Desmethyl diphenhydramine hydrochloride

2-(二苯基甲氧基)-N-甲基乙胺盐酸盐

Also known as: 2-(Diphenylmethoxy)-N-methylethanamine hydrochloride, 2-(Benzhydryloxy)-N-methylethanamine hydrochloride, Diphenhydramine EP Impurity A HCl, Diphenhydramine Related Compound A (USP), N-Desmethyldiphenhydramine hydrochloride, Diphenhydramine Impurity 1, Ethanamine, 2-(diphenylmethoxy)-N-methyl-, hydrochloride (1:1)

N-Desmethyl diphenhydramine hydrochloride (CAS 53499-40-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H20ClNO and a molecular weight of 277.789 g/mol. It is also known as 2-(Diphenylmethoxy)-N-methylethanamine hydrochloride, 2-(Benzhydryloxy)-N-methylethanamine hydrochloride and Diphenhydramine EP Impurity A HCl. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
53499-40-4
Jingsj CID
J-865430-6
Molecular Formula
C16H20ClNO
Chinese Name
2-(二苯基甲氧基)-N-甲基乙胺盐酸盐
Molecular Weight
277.789 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Exact Mass277.123352
PSA21.26000
LogP4.20490

Customs & Trade Information

HS Code2922199090
Summary2922199090. other amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of N-Desmethyl diphenhydramine hydrochloride?

The CAS number of N-Desmethyl diphenhydramine hydrochloride is 53499-40-4.

What are the molecular formula and molecular weight of N-Desmethyl diphenhydramine hydrochloride?

N-Desmethyl diphenhydramine hydrochloride has molecular formula C16H20ClNO and molecular weight 277.789 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-Desmethyl diphenhydramine hydrochloride (CAS 53499-40-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-865430-6 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.