Bromodiphenhydramine

Also known as: Bromazine, Bromanautine, Bromo-Benadryl, Histabromamine, Diphenhydramine EP Impurity C, Dimenhydrinate EP Impurity H, N-2-(4-bromobenzhydryloxy)ethyldimethylamine, N,N-dimethyl-2-[(4-bromophenyl)-phenylmethoxy]ethanamine

Bromodiphenhydramine (CAS 118-23-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C17H20BrNO and a molecular weight of 334.25100 g/mol. Key properties include a boiling point of 397.3ºC at 760mmHg, a density of 1.259g/cm3 and a flash point of 194.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 118-23-0
Jingsj CID: J-1177715-9
Molecular Formula: C₁₇H₂₀BrNO
Molecular Weight: 334.25100 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	397.3ºC at 760mmHg
Density	1.259g/cm3
Flash Point	194.1ºC
Exact Mass	333.07300
PSA	12.47000
LogP	4.11670

Activity & Biological Data

Additional Information	[1]. MOLINA EB. [A new antihistaminic, bromodiphenhydramine hydrochloride, in the control of cutaneous allergies]. Sem Med. 1960 Jul 11;117:151-2. Spanish. [2]. Dastidar SG, et al. Antibacterial activity of ambodryl and benadryl. J Appl Bacteriol. 1976 Oct;41(2):209-14. [3]. Ray S, et al. Studies on synergism between penicillins and ambodryl (bromodiphenhydramine HCl), an antihistamine with antimicrobial property. Indian J Exp Biol. 1990 Mar;28(3):253-8.

Additional Information

[1]. MOLINA EB. [A new antihistaminic, bromodiphenhydramine hydrochloride, in the control of cutaneous allergies]. Sem Med. 1960 Jul 11;117:151-2. Spanish. [2]. Dastidar SG, et al. Antibacterial activity of ambodryl and benadryl. J Appl Bacteriol. 1976 Oct;41(2):209-14. [3]. Ray S, et al. Studies on synergism between penicillins and ambodryl (bromodiphenhydramine HCl), an antihistamine with antimicrobial property. Indian J Exp Biol. 1990 Mar;28(3):253-8.

Customs & Trade Information

HS Code	2922199090
Summary	2922199090. 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 Bromodiphenhydramine?

The CAS number of Bromodiphenhydramine is 118-23-0.

What are the molecular formula and molecular weight of Bromodiphenhydramine?

Bromodiphenhydramine has molecular formula C17H20BrNO and molecular weight 334.25100 g/mol.

What are the upstream and downstream products of Bromodiphenhydramine?

For Bromodiphenhydramine, Downstream Products: Bromodiphenhydramine hydrochloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Bromodiphenhydramine (CAS 118-23-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1177715-9 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.