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5-Methyl-1H-pyrazol-3-amine

Also known as: 3-Amino-5-methylpyrazole, 3-Amino-5-methyl-1H-pyrazole, 3-Methyl-1H-pyrazol-5-amine, 5-Methyl-3-aminopyrazole, 5-Methyl-2H-pyrazol-3-ylamine, 5-Methyl-3-pyrazolamine, 5-Amino-3-methylpyrazole, 3,5-AMP, 3,1-AMP, MFCD00051640

5-Methyl-1H-pyrazol-3-amine (CAS 31230-17-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H7N3 and a molecular weight of 97.12 g/mol. Key properties include a melting point of 45-47 °C(lit.), a boiling point of 357.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 169.5±9.5 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31230-17-8
Jingsj CID
J-17838-1
Molecular Formula
C4H7N3
Molecular Weight
97.12 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point45-47 °C(lit.)
Boiling Point357.0±0.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point169.5±9.5 °C
Exact Mass97.063995
PSA54.70000
LogP0.17
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.617

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 5-Methyl-1H-pyrazol-3-amine?

The CAS number of 5-Methyl-1H-pyrazol-3-amine is 31230-17-8.

What are the molecular formula and molecular weight of 5-Methyl-1H-pyrazol-3-amine?

5-Methyl-1H-pyrazol-3-amine has molecular formula C4H7N3 and molecular weight 97.12 g/mol.

Is 5-Methyl-1H-pyrazol-3-amine hazardous?

5-Methyl-1H-pyrazol-3-amine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 5-Methyl-1H-pyrazol-3-amine?

For 5-Methyl-1H-pyrazol-3-amine, Upstream Products: 3-Aminocrotononitrile, 2,3-Dichloropropene, 3-amino-2-butenenitrile; Downstream Products: tert-Butyl 5-amino-3-methyl-1H-pyrazole-1-carboxylate, 1-aminoanthraquinone, 2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-ol.

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-Methyl-1H-pyrazol-3-amine (CAS 31230-17-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17838-1 (accessed 2026-11-09).

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