Cycloserine

Drug ingredient

CAS 68-41-7

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

US productionNot reported

Import value, 2024$546M

Top sourceItaly 41%

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 294190 · basket

These shares come from HS customs code 294190, which covers 90 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).

IT 41%ItalyCN 24%ChinaDK 9%DenmarkHR 6%CroatiaIN 6%India

United Kingdom
Slovakia
Slovenia
Mexico
Canada
Germany
Belgium
Japan
Switzerland
Netherlands
Czech Republic
Uruguay
South Korea
Hong Kong
Portugal
Australia

5 FDA-registered drug labelers

DARMERICA, LLC

Dr. Reddys Laboratories, Inc.

Macleods Pharmaceuticals Limited

Professional Compounding Centers of America

Solara Active Pharma Sciences Limited

Why It Matters

Sectors

Health

Downstream Uses

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

•Cycloserine

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

$19.60/gA2B Chem LLC

CountryUnited States

Pack$98.00 / 5 g

Purity90%

Vendors18 available

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

17 more vendors

Vendor	Country	$/g	Pack	Purity
AA BLOCKS	United States	$22.00	5 g	90%
Chemscene	United States	$24.20	25 g	—
BLD Pharmatech Co., Limited	United States	$24.20	25 g	90%
BLD Pharmatech Ltd.	China	$24.20	25 g	90%
Ambeed, Inc.	United States	$24.20	25 g	90%
Aaron Chemicals LLC	Hong Kong	$25.88	25 g	90%
Combi-Blocks, Inc.	United States	$26.90	10 g	95%
BLD Pharmatech GmbH	Germany	$27.60	5 g	90%
Angene Chemical	China → Hong Kong	$28.20	5 g	90%
Fluorochem EU	Germany	$33.40	5 g	90%
Fluorochem UK	United Kingdom	$72.93	1 g	90%
AstaTech (2 weeks)	United States	$143.00	1 g	95%
Vitas M Chemical Limited	Hong Kong	$561.00	1 g	90%
Molnova	China	$645.00	200 mg	99%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	90%
Angene International Limited	United States	$9810.00	100 mg	98%

Chemical Identity

CAS68-41-7

PubChem CID6234

DTXSIDDTXSID8022870

FormulaC3H6N2O2

Mol. Weight102.09 g/mol

SMILESC1C(C(=O)NO1)N

Data Sources

PubChem · compound 6234Retrieved 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

Cycloserine (CAS 68-41-7) https://chemicalindependence.com/chemical/68-41-7/ PubChem: 6234. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/6234 FDA National Drug Code directory: CAS 68-41-7. 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 294190 for CAS 68-41-7. Reporting year: 2024. https://usatrade.census.gov/