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Ethyl 3-amino-1H-pyrazole-4-carboxylate

Also known as: Ethyl 3-amino-4-pyrazolecarboxylate, 3-Amino-4-carbethoxypyrazole, Ethyl 5-amino-1H-pyrazole-4-carboxylate, Allopurinol EP Impurity D, Allopurinol Impurity 4, EINECS 230-262-3, MFCD00114562

Ethyl 3-amino-1H-pyrazole-4-carboxylate (CAS 6994-25-8) 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 155.15 g/mol. Key properties include a melting point of 103-107ºC, 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. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6994-25-8
Jingsj CID
J-46762-9
Molecular Formula
C6H9N3O2
Molecular Weight
155.15 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point103-107ºC
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
LogP1.76
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.585
Storage ConditionsAmber Vial, -20°C Freezer

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H317 — May cause an allergic skin reaction
  • H410 — Very toxic to aquatic life with long lasting effects

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 3-amino-1H-pyrazole-4-carboxylate?

The CAS number of Ethyl 3-amino-1H-pyrazole-4-carboxylate is 6994-25-8.

What are the molecular formula and molecular weight of Ethyl 3-amino-1H-pyrazole-4-carboxylate?

Ethyl 3-amino-1H-pyrazole-4-carboxylate has molecular formula C6H9N3O2 and molecular weight 155.15 g/mol.

Is Ethyl 3-amino-1H-pyrazole-4-carboxylate hazardous?

Ethyl 3-amino-1H-pyrazole-4-carboxylate has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of Ethyl 3-amino-1H-pyrazole-4-carboxylate?

For Ethyl 3-amino-1H-pyrazole-4-carboxylate, Upstream Products: Ethyl (ethoxymethylene)cyanoacetate, Ethyl 2-cyano-3-morpholin-4-ylprop-2-enoate, Ethyl cyanoacetate; Downstream Products: Ethyl 4,7-dihydro-7-oxopyrazolo[1,5-a]pyrimidine-3-carboxylate, Ethyl 4-pyrazolecarboxylate, ethyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate.

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 3-amino-1H-pyrazole-4-carboxylate (CAS 6994-25-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46762-9 (accessed 2026-11-09).

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