(2-Hydroxyethyl)ammonium mercaptoacetate

Drug ingredient

CAS 126-97-6

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

US production99.9K lb

Import value, 2024$760M

Import volume34.5K lb

Import dependency26%

Top sourceChina 33%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293090 · basket

EPA reports by year

2023: US production 99.9K lb · Imports 34.5K lb
2019: US production 7.7K lb · Imports Zero

These shares come from HS customs code 293090, which covers 418 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).

CN 33%ChinaES 14%SpainCH 9%SwitzerlandIT 7%ItalyIN 7%India

Israel
Croatia
Ukraine
Slovakia
United Arab Emirates
Ireland
Poland
Lithuania
Brazil
Singapore
Australia
Armenia
Hong Kong
Vietnam
Czech Republic
Hungary
Greece
Russia

EPA-registered manufacturers (1)

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

Evans Chemetics Lp Dba Bruno Bock

Why It Matters

Sectors

HealthCore Chemicals

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Thio Combination 9306

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

•Cleaning agent in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.26/gA2B Chem LLC

CountryUnited States

Pack$131.00 / 500 g

Purity85%

Vendors7 available

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

6 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$0.28	500 g	85%
Aaron Chemicals LLC	Hong Kong	$0.48	500 g	—
Angene Chemical	China → Hong Kong	$0.48	500 g	—
AK Scientific, Inc.	United States	$0.62	500 g	85%
Angene International Limited	United States	$1.02	500 g	85%
Angene	China → Hong Kong	$4266.67	30 mg	—

Chemical Identity

CAS126-97-6

PubChem CID160430

DTXSIDDTXSID7059569

FormulaC4H11NO3S

Mol. Weight153.2 g/mol

SMILESC(CO)N.C(C(=O)O)S

Data Sources

EPA CompTox (DSSTox) · DTXSID7059569Retrieved 2026-04-06
PubChem · compound 160430Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

(2-Hydroxyethyl)ammonium mercaptoacetate (CAS 126-97-6) https://chemicalindependence.com/chemical/126-97-6/ EPA CompTox (DSSTox): DTXSID7059569. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7059569 PubChem: 160430. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/160430 EPA Chemical Data Reporting: 126-97-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 126-97-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 126-97-6. Reporting year: 2024. https://usatrade.census.gov/