Hydrazinecarboxylic acid, phenylmethyl ester

CAS 5331-43-1

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceNo public record

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

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

Where It Comes From

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

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.

Vandemark Chemical

Why It Matters

Sectors

Agriculture

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

•Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingProcessing as a reactant

Vendor Pricing

$0.08/gAaron Chemicals LLC

CountryHong Kong

Pack$38.00 / 500 g

Purity98%

Vendors24 available

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

23 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.08	500 g	98%
Manchester Organics	United Kingdom	$0.11	500 g	—
A2B Chem LLC	United States	$0.14	500 g	95%
AstaTech, Inc	United States	$0.17	500 g	95%
Chemscene	United States	$0.18	1 kg	—
AA BLOCKS	United States	$0.19	500 g	95%
Ambeed, Inc.	United States	$0.20	1 kg	97%
MedChemExpress MCE	Sweden	$0.22	1 kg	—
Apollo Scientific UK	United Kingdom	$0.24	500 g	95%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
Fluorochem EU	Germany	$0.34	25 g	95%
Synthonix	United States	$0.40	100 g	95%
Angene International Limited	United States	$0.49	100 g	97%
AK Scientific Specialized	United States	$0.50	100 g	98%
AK Scientific, Inc.	United States	$0.70	100 g	99%
Fluorochem UK	United Kingdom	$7.15	1 g	95%
ALFA AESAR	Germany	$8.54	25 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$11.18	25 g	97%
Sigma-Aldrich	Germany	$11.18	25 g	97%
Labotest KG	Germany	$453.00	1000 mg	90%
Key Organics Ltd.	United Kingdom	$2740.00	50 mg	95%
Angene	China → Hong Kong	$4266.67	30 mg	98%
Life Chemicals Inc.	Ukraine → Canada	$4650.00	100 mg	90%

Chemical Identity

CAS5331-43-1

PubChem CID79242

DTXSIDDTXSID1047447

FormulaC8H10N2O2

Mol. Weight166.18 g/mol

SMILESC1=CC=C(C=C1)COC(=O)NN

Data Sources

EPA CompTox (DSSTox) · DTXSID1047447Retrieved 2026-04-06
PubChem · compound 79242Retrieved 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

Hydrazinecarboxylic acid, phenylmethyl ester (CAS 5331-43-1) https://chemicalindependence.com/chemical/5331-43-1/ EPA CompTox (DSSTox): DTXSID1047447. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1047447 PubChem: 79242. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/79242 EPA Chemical Data Reporting: 5331-43-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5331-43-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting