Diatrizoate sodium

Drug ingredient

CAS 737-31-5

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

US productionNot reported

Import value, 2024$872M

Top sourceSwitzerland 44%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 292429 · basket

These shares come from HS customs code 292429, which covers 203 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CH 44%SwitzerlandCN 19%ChinaIN 12%IndiaJP 9%JapanIE 6%Ireland

Taiwan
United Kingdom
El Salvador
Colombia
Ukraine
Brazil
Guatemala
Belgium
Netherlands
Turkey
Sweden
Greece
Canada
Israel
New Zealand
Latvia
Lithuania
Finland
Slovakia
Australia
Hong Kong
Czech Republic
Armenia
Poland

7 FDA-registered drug labelers

Bracco Diagnostics Inc

Camber Pharmaceuticals, Inc.

Curia New York, Inc.

Guardian Drug Company

Honour Lab Limited

Liebel-Flarsheim Company LLC

Sionc Pharmaceutical Private Limited

Why It Matters

Sectors

Health

Downstream Uses

Appears in 3 drug and cosmetic product listings (FDA).

•Diatrizoate Meglumine and Diatrizoate Sodium
•Gastrografin
•MD Gastroview

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Vendor Pricing

$0.28/gCombi-Blocks, Inc.

CountryUnited States

Pack$280.00 / 1 kg

Purity95%

Vendors14 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

13 more vendors

Vendor	Country	$/g	Pack	Purity
A2B Chem LLC	United States	$0.30	1 kg	95%
AA BLOCKS	United States	$0.32	1 kg	95%
AK Scientific, Inc.	United States	$0.55	100 g	98%
Aaron Chemicals LLC	Hong Kong	$0.92	500 g	98%
Angene Chemical	China → Hong Kong	$0.99	500 g	98%
Angene International Limited	United States	$1.20	100 g	98%
Molnova	China	$74.00	500 mg	99%
MedChemExpress MCE	Sweden	$75.02	1 g	99.55%
Ambeed, Inc.	United States	$120.00	100 mg	95%
Labotest KG	Germany	$217.80	5000 mg	90%
AstaTech (2 weeks)	United States	$480.00	100 mg	95%
MedKoo Biosciences, Inc	United States	$2500.00	100 mg	98%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS737-31-5

PubChem CID23672589

DTXSIDDTXSID7022912

FormulaC11H8I3N2NaO4

Mol. Weight635.89 g/mol

SMILESCC(=O)NC1=C(C(=C(C(=C1I)C(=O)[O-])I)NC(=O)C)I.[Na+]

Data Sources

PubChem · compound 23672589Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Diatrizoate sodium (CAS 737-31-5) https://chemicalindependence.com/chemical/737-31-5/ PubChem: 23672589. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/23672589 FDA National Drug Code directory: CAS 737-31-5. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 292429 for CAS 737-31-5. Reporting year: 2024. https://usatrade.census.gov/