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1-Amino-4-bromo-2-methylanthraquinone

Also known as: 1-Amino-4-bromo-2-methyl-9,10-anthraquinone, 1-Amino-4-bromo-2-methylanthra-9,10-quinone, 1-Amino-4-bromo-2-methylanthracene-9,10-dione, 9,10-Anthracenedione, 1-amino-4-bromo-2-methyl-, Anthraquinone, 1-amino-4-bromo-2-methyl-, 1-Amino-2-methyl-4-bromoanthraquinone, 1-Amino-4-bromo-2-methyl-10-anthracenedione

1-Amino-4-bromo-2-methylanthraquinone (CAS 81-50-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H10BrNO2 and a molecular weight of 316.149 g/mol. Key properties include a melting point of 245ºC (dec.)(lit.), a boiling point of 526.5±50.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 272.2±30.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81-50-5
Jingsj CID
J-20227-7
Molecular Formula
C15H10BrNO2
Molecular Weight
316.149 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point245ºC (dec.)(lit.)
Boiling Point526.5±50.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point272.2±30.1 °C
Exact Mass314.989471
PSA60.16000
LogP4.93
Vapor Pressure0.0±1.4 mmHg at 25°C
Refractive Index1.706

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2922399090
Summary2922399090 other amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-Amino-4-bromo-2-methylanthraquinone?

The CAS number of 1-Amino-4-bromo-2-methylanthraquinone is 81-50-5.

What are the molecular formula and molecular weight of 1-Amino-4-bromo-2-methylanthraquinone?

1-Amino-4-bromo-2-methylanthraquinone has molecular formula C15H10BrNO2 and molecular weight 316.149 g/mol.

Is 1-Amino-4-bromo-2-methylanthraquinone hazardous?

1-Amino-4-bromo-2-methylanthraquinone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1-Amino-4-bromo-2-methylanthraquinone?

For 1-Amino-4-bromo-2-methylanthraquinone, Upstream Products: Disperse Orange 11, Water, Cyclohexene; Downstream Products: Ethyl 6-bromo-2,7-dihydro-4-methyl-2,7-dioxo-3H-dibenzo[f,ij]isoquinoline-1-carboxylate.

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

Last updated:

How to cite: Jingsj. "1-Amino-4-bromo-2-methylanthraquinone (CAS 81-50-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20227-7 (accessed 2026-11-09).

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