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Sulfadiazine

Also known as: 4-Amino-N-(2-pyrimidinyl)benzenesulfonamide, N1-(2-Pyrimidinyl)sulfanilamide, Sulfapyrimidine, 2-Sulfanilamidopyrimidine, Adiazine, Debenal, Diazin, Pyrimal, Eksadiazine, RP2616, Sulfadiazine Base, Sulphadiazine

Sulfadiazine (CAS 68-35-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10N4O2S and a molecular weight of 250.277 g/mol. Key properties include a melting point of 253 °C (dec.)(lit.), a boiling point of 512.6±52.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 263.8±30.7 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68-35-9
Jingsj CID
J-1100530-0
Molecular Formula
C10H10N4O2S
Molecular Weight
250.277 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point253 °C (dec.)(lit.)
Boiling Point512.6±52.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point263.8±30.7 °C
Exact Mass250.052444
PSA106.35000
LogP-0.12
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.679

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Kucan, J.O., et al., Comparison of silver sulfadiazine, povidone-iodine and physiologic saline in the treatment of chronic pressure ulcers. J Am Geriatr Soc, 1981. 29(5): p. 232-5.

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 Sulfadiazine?

The CAS number of Sulfadiazine is 68-35-9.

What are the molecular formula and molecular weight of Sulfadiazine?

Sulfadiazine has molecular formula C10H10N4O2S and molecular weight 250.277 g/mol.

Is Sulfadiazine hazardous?

Sulfadiazine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of Sulfadiazine?

For Sulfadiazine, Upstream Products: N-Acetylsulfanilyl chloride, 4-Nitrobenzenesulfonyl chloride, 2-Chloropyrimidine.

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

Last updated:

How to cite: Jingsj. "Sulfadiazine (CAS 68-35-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1100530-0 (accessed 2026-11-07).

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