3-Amino-4-pyrazolecarboxamide hemisulfate

3-氨基-4-甲酰胺基吡唑半硫酸盐

Also known as: 3-Aminopyrazole-4-carboxamide hemisulfate, 3-Amino-1H-pyrazole-4-carboxamide hemisulfate, 5-Aminopyrazole-4-carboxamide hemisulphate, Allopurinol Related Compound A, Allopurinol EP Impurity A, 3-Amino-4-carbamoylpyrazole hemisulfate

3-Amino-4-pyrazolecarboxamide hemisulfate (CAS 27511-79-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H14N8O6S and a molecular weight of 350.312 g/mol. It is also known as 3-Aminopyrazole-4-carboxamide hemisulfate, 3-Amino-1H-pyrazole-4-carboxamide hemisulfate and 5-Aminopyrazole-4-carboxamide hemisulphate. Key properties include a melting point of 222-234ºC, a boiling point of 454.3ºC at 760 mmHg and a density of 0.84. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27511-79-1
Jingsj CID
J-1117104-5
Molecular Formula
C8H14N8O6S
Chinese Name
3-氨基-4-甲酰胺基吡唑半硫酸盐
Molecular Weight
350.312 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point222-234ºC
Boiling Point454.3ºC at 760 mmHg
Density0.84

Frequently Asked Questions

What is the CAS number of 3-Amino-4-pyrazolecarboxamide hemisulfate?

The CAS number of 3-Amino-4-pyrazolecarboxamide hemisulfate is 27511-79-1.

What are the molecular formula and molecular weight of 3-Amino-4-pyrazolecarboxamide hemisulfate?

3-Amino-4-pyrazolecarboxamide hemisulfate has molecular formula C8H14N8O6S and molecular weight 350.312 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Amino-4-pyrazolecarboxamide hemisulfate (CAS 27511-79-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117104-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.