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Sulfamonomethoxine

Also known as: 4-Amino-N-(6-methoxy-4-pyrimidinyl)benzenesulfonamide, N-(6-Methoxy-4-pyrimidinyl)sulfanilamide, 4-Methoxy-6-sulfanilamidopyrimidine, 4-Sulfanilamido-6-methoxypyrimidine, MFCD00063466, ICI 32525

Sulfamonomethoxine (CAS 1220-83-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H12N4O3S and a molecular weight of 280.303 g/mol. Key properties include a melting point of 203-206°C, a boiling point of 513℃, a density of 1.3936 and a flash point of >110°. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
1220-83-3
Jingsj CID
J-1107855-7
Molecular Formula
C11H12N4O3S
Molecular Weight
280.303 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026

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Physicochemical Properties

Melting Point203-206°C
Boiling Point513℃
Density1.3936
Flash Point>110°
Exact Mass280.063019
PSA115.58000
LogP-0.04
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.6200

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2935009090
Summary2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0%

Frequently Asked Questions

What is the CAS number of Sulfamonomethoxine?

The CAS number of Sulfamonomethoxine is 1220-83-3.

What are the molecular formula and molecular weight of Sulfamonomethoxine?

Sulfamonomethoxine has molecular formula C11H12N4O3S and molecular weight 280.303 g/mol.

Is Sulfamonomethoxine hazardous?

Sulfamonomethoxine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Sulfamonomethoxine?

For Sulfamonomethoxine, Upstream Products: 4-Nitrobenzenesulfonyl chloride.

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

Last updated:

How to cite: Jingsj. "Sulfamonomethoxine (CAS 1220-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1107855-7 (accessed 2026-11-07).

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