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5-Amino-1H-pyrazole-3-acetic acid

Also known as: (3-Amino-1H-pyrazol-5-yl)acetic acid, (5-Amino-2H-pyrazol-3-yl)acetic acid, (5-Amino-1H-pyrazol-3-yl)acetic acid, (5-Aminopyrazol-3-yl)acetic acid, 1H-Pyrazole-5-acetic acid, 3-amino-, 2-(3-Amino-5-pyrazolyl)acetic acid, 2-(3-Amino-1H-pyrazol-5-yl)acetic acid, 2-(5-Amino-1H-pyrazol-3-yl)acetic acid, 5-Amino-1H-pyrazol-3-ylacetic acid, 5-Amino-1H-pyrazole-3-acetic acid

5-Amino-1H-pyrazole-3-acetic acid (CAS 174891-10-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O2 and a molecular weight of 141.128 g/mol. Key properties include a boiling point of 504.4±35.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 258.8±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
174891-10-2
Jingsj CID
J-1163006-1
Molecular Formula
C5H7N3O2
Molecular Weight
141.128 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point504.4±35.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point258.8±25.9 °C
Exact Mass141.053833
PSA92.00000
LogP-1.01
Vapor Pressure0.0±1.4 mmHg at 25°C
Refractive Index1.676
Storage Conditions2-8°C

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 5-Amino-1H-pyrazole-3-acetic acid?

The CAS number of 5-Amino-1H-pyrazole-3-acetic acid is 174891-10-2.

What are the molecular formula and molecular weight of 5-Amino-1H-pyrazole-3-acetic acid?

5-Amino-1H-pyrazole-3-acetic acid has molecular formula C5H7N3O2 and molecular weight 141.128 g/mol.

What are the upstream and downstream products of 5-Amino-1H-pyrazole-3-acetic acid?

For 5-Amino-1H-pyrazole-3-acetic acid, Upstream Products: 5-Amino-4-cyano-3-(cyanomethyl)pyrazole; Downstream Products: [5-[7-(3-Chloropropoxy)quinazolin-4-ylamino]pyrazol-3-yl]acetic acid, Barasertib, Barasertib (AZD1152-HQPA).

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

Last updated:

How to cite: Jingsj. "5-Amino-1H-pyrazole-3-acetic acid (CAS 174891-10-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1163006-1 (accessed 2026-11-09).

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