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1,3,5-Trimethyl-1H-pyrazol-4-amine

Also known as: 4-Amino-1,3,5-trimethyl-1H-pyrazole, 4-Amino-1,3,5-trimethylpyrazole, 1,3,5-Trimethyl-4-aminopyrazole, 1,3,5-trimethyl-1H-4-aminopyrazole, 1,3,5-trimethyl-1H-pyrazol-4-ylamine, 1,3,5-trimethyl-4-aminopyrazole, 1H-Pyrazol-4-amine, 1,3,5-trimethyl-, 4-Amino-2,3,5-trimethyl-2H-pyrazole

1,3,5-Trimethyl-1H-pyrazol-4-amine (CAS 28466-21-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H11N3 and a molecular weight of 125.172 g/mol. Key properties include a melting point of 96 °C, a boiling point of 236.3±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 96.7±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28466-21-9
Jingsj CID
J-27995-8
Molecular Formula
C6H11N3
Molecular Weight
125.172 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point96 °C
Boiling Point236.3±35.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point96.7±25.9 °C
Exact Mass125.095299
PSA43.84000
LogP0.25
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.568

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 1,3,5-Trimethyl-1H-pyrazol-4-amine?

The CAS number of 1,3,5-Trimethyl-1H-pyrazol-4-amine is 28466-21-9.

What are the molecular formula and molecular weight of 1,3,5-Trimethyl-1H-pyrazol-4-amine?

1,3,5-Trimethyl-1H-pyrazol-4-amine has molecular formula C6H11N3 and molecular weight 125.172 g/mol.

What are the upstream and downstream products of 1,3,5-Trimethyl-1H-pyrazol-4-amine?

For 1,3,5-Trimethyl-1H-pyrazol-4-amine, Upstream Products: 1,3,5-Trimethyl-4-nitro-1H-pyrazole, 4-Bromo-1,3,5-trimethyl-1H-pyrazole, 2,3,4-Pentanetrione, 3-oxime; Downstream Products: 4-Iodo-1,3,5-trimethyl-1H-pyrazole.

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

Last updated:

How to cite: Jingsj. "1,3,5-Trimethyl-1H-pyrazol-4-amine (CAS 28466-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27995-8 (accessed 2026-11-09).

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