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Diatrizoate sodium

Also known as: Sodium diatrizoate, Amidotrizoate sodium, Sodium amidotrizoate, Hypaque sodium, 3,5-Diacetamido-2,4,6-triiodobenzoic acid sodium salt, Sodium 3,5-diacetamido-2,4,6-triiodobenzoate, Urografic Acid Sodium Salt, EINECS 212-004-1, MFCD00051544

Diatrizoate sodium (CAS 737-31-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H8I3N2NaO4 and a molecular weight of 635.895 g/mol. Key properties include a boiling point of 614.1ºC at 760 mmHg and a flash point of 325.2ºC. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
737-31-5
Jingsj CID
J-37897-4
Molecular Formula
C11H8I3N2NaO4
Molecular Weight
635.895 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point614.1ºC at 760 mmHg
Flash Point325.2ºC
Exact Mass635.751587
PSA98.33000
LogP1.92670
Additional PropertyH2O: 0.35 g/mL, slightly turbid, colorless

GHS Safety & Compliance

Health HazardSignal word: Danger
  • H317 — May cause an allergic skin reaction
  • H334 — May cause allergy or asthma symptoms if inhaled

Activity & Biological Data

Additional Information[1]. El-Gendy N, et al. Dry powdered aerosols of diatrizoic acid nanoparticle agglomerates as a lung contrast agent. Int J Pharm. 2010 May 31;391(1-2):305-12.

Customs & Trade Information

HS Code2924299090
Summary2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; 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 Diatrizoate sodium?

The CAS number of Diatrizoate sodium is 737-31-5.

What are the molecular formula and molecular weight of Diatrizoate sodium?

Diatrizoate sodium has molecular formula C11H8I3N2NaO4 and molecular weight 635.895 g/mol.

Is Diatrizoate sodium hazardous?

Diatrizoate sodium has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H334 — May cause allergy or asthma symptoms if inhaled.

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

Last updated:

How to cite: Jingsj. "Diatrizoate sodium (CAS 737-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37897-4 (accessed 2026-11-06).

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