Amino(imino)methanesulfinic acid

CAS 1758-73-2

Companies reported imports and no US production of this chemical to EPA for 2023.

US productionZero

Import volume350.7K lb

Import dependency100%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production Zero · Imports 350.7K lb
2019: US production Zero · Imports 35.2K lb

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Wintersun International

EPA-registered importers (3)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Chemical Distribution Network

Dystar

Wego Chemical Group

Why It Matters

Sectors

TextilesPaper & Printing

Downstream UsesNot recorded

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

Industrial Uses

Used in 2 sectors as 2 functional roles.

•Tanning agents not otherwise specified in Textiles, apparel, and leather manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
•Bleaching agent in Textiles, apparel, and leather manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
•Bleaching agent in Paper Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAaron Chemicals LLC

CountryHong Kong

Pack$10.00 / 500 g

Purity98%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.03	500 g	98%
A2B Chem LLC	United States	$0.07	500 g	98%
AA BLOCKS	United States	$0.09	500 g	98%
AK Scientific, Inc.	United States	$0.18	500 g	98%
MedChemExpress MCE	Sweden	$0.25	1 kg	99%
Sigma-Aldrich (Rush Stock)	Germany	$0.39	100 g	98%
Sigma-Aldrich	Germany	$0.39	100 g	98%
Angene International Limited	United States	$0.62	500 g	98%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS1758-73-2

PubChem CID61274

DTXSIDDTXSID4029224

FormulaCH4N2O2S

Mol. Weight108.12 g/mol

SMILESC(=N)(N)S(=O)O

Data Sources

EPA CompTox (DSSTox) · DTXSID4029224Retrieved 2026-04-06
PubChem · compound 61274Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

Amino(imino)methanesulfinic acid (CAS 1758-73-2) https://chemicalindependence.com/chemical/1758-73-2/ EPA CompTox (DSSTox): DTXSID4029224. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4029224 PubChem: 61274. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61274 EPA Chemical Data Reporting: 1758-73-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1758-73-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting