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Ethyl 4-amino-1H-pyrazole-5-carboxylate

Also known as: 4-Amino-1H-pyrazole-5-carboxylic acid ethyl ester, 4-Amino-1H-pyrazole-3-carboxylic acid ethyl ester, 4-Amino-2H-pyrazole-3-carboxylic acid ethyl ester, 4-Amino-3-carbethoxypyrazole, Ethyl 4-amino-1H-pyrazole-3-carboxylate, Ethyl 4-amino-1H-pyrazole-5-carboxylate hydrochloride, ALINDA 103183, ART-CHEM-BB B028541, VITAS-BB TBB000700

Ethyl 4-amino-1H-pyrazole-5-carboxylate (CAS 55904-61-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H9N3O2 and a molecular weight of 155.155 g/mol. Key properties include a boiling point of 349.2±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 165.0±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55904-61-5
Jingsj CID
J-870791-3
Molecular Formula
C6H9N3O2
Molecular Weight
155.155 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point349.2±22.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point165.0±22.3 °C
Exact Mass155.069473
PSA81.00000
LogP0.34
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.585

Customs & Trade Information

HS Code2933199090
Summary2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Ethyl 4-amino-1H-pyrazole-5-carboxylate?

The CAS number of Ethyl 4-amino-1H-pyrazole-5-carboxylate is 55904-61-5.

What are the molecular formula and molecular weight of Ethyl 4-amino-1H-pyrazole-5-carboxylate?

Ethyl 4-amino-1H-pyrazole-5-carboxylate has molecular formula C6H9N3O2 and molecular weight 155.155 g/mol.

What are the upstream and downstream products of Ethyl 4-amino-1H-pyrazole-5-carboxylate?

For Ethyl 4-amino-1H-pyrazole-5-carboxylate, Upstream Products: ethyl 4-nitro-1H-pyrazole-3-carboxylate; Downstream Products: 1H-Pyrazole-3-carboxylic acid, 4-[(2,6-dichlorobenzoyl)amino]-.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Ethyl 4-amino-1H-pyrazole-5-carboxylate (CAS 55904-61-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-870791-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.