Pralidoxime chloride

Drug ingredient

CAS 51-15-0

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

US productionNot reported

Import value, 2024$1.3B

Top sourceChina 32%

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 293339 · basket

These shares come from HS customs code 293339, which covers 397 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 32%ChinaIN 15%IndiaDE 10%GermanyBE 9%BelgiumCH 8%Switzerland

Taiwan
Ukraine
Sweden
Argentina
Canada
Finland
Malta
Israel
Netherlands
Denmark
United Arab Emirates
Mexico
Brunei
Slovakia
Australia
South Africa
Poland
Latvia
Lithuania
Estonia
Slovenia
Czech Republic
Croatia
Hong Kong

4 FDA-registered drug labelers

Baxter Healthcare Corporation

Curia New York, Inc.

DISHMAN CARBOGEN AMCIS LIMITED

Wavelength Enterprises Ltd.

Why It Matters

Sectors

Health

Downstream Uses

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

•Protopam Chloride

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

$0.58/gAaron Chemicals LLC

CountryHong Kong

Pack$58.00 / 100 g

Purity98%

Vendors18 available

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

17 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.64	500 g	98%
A2B Chem LLC	United States	$0.72	500 g	98%
Combi-Blocks, Inc.	United States	$0.81	500 g	98%
AA BLOCKS	United States	$0.91	500 g	98%
AK Scientific Specialized	United States	$1.15	100 g	95%
Ambeed, Inc.	United States	$1.37	100 g	98%
AK Scientific, Inc.	United States	$1.54	100 g	98%
AstaTech (2 weeks)	United States	$1.75	100 g	95%
Angene International Limited	United States	$11.64	25 g	98%
Cayman Europe	Estonia	$22.02	10 g	95%
Sigma-Aldrich (Rush Stock)	Germany	$22.28	25 g	—
Sigma-Aldrich	Germany	$22.28	25 g	—
TargetMol Chemicals	China → United States	$95.00	1 g	99.96%
TargetMol Chemicals US	United States	$130.00	500 mg	99.96%
Labotest KG	Germany	$453.00	1000 mg	90%
MedChemExpress MCE	Sweden	$750.20	100 mg	99.83%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS51-15-0

PubChem CID135445761

DTXSIDDTXSID1023495

FormulaC7H9ClN2O

Mol. Weight172.61 g/mol

SMILESC[N+]1=CC=CC=C1C=NO.[Cl-]

Data Sources

PubChem · compound 135445761Retrieved 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

Pralidoxime chloride (CAS 51-15-0) https://chemicalindependence.com/chemical/51-15-0/ PubChem: 135445761. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/135445761 FDA National Drug Code directory: CAS 51-15-0. 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 293339 for CAS 51-15-0. Reporting year: 2024. https://usatrade.census.gov/