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1,3-Dimethyl-1H-pyrazole-5-carbaldehyde

Also known as: 1,3-Dimethylpyrazole-5-carbaldehyde, 2,5-Dimethylpyrazole-3-carbaldehyde, 2,5-Dimethyl-2H-pyrazole-3-carbaldehyde, 1,3-Dimethyl-5-formyl-1H-pyrazole, 1,3-Dimethyl-1H-pyrazole-5-carboxaldehyde, AKOS B015985, ART-CHEM-BB B015985, MFCD02681907

1,3-Dimethyl-1H-pyrazole-5-carbaldehyde (CAS 25016-09-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N2O and a molecular weight of 124.141 g/mol. Key properties include a melting point of 40-42°C, a boiling point of 227.7±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 91.5±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25016-09-5
Jingsj CID
J-29916-1
Molecular Formula
C6H8N2O
Molecular Weight
124.141 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40-42°C
Boiling Point227.7±20.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point91.5±21.8 °C
Exact Mass124.063660
PSA34.89000
LogP-0.15
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.543
Storage Conditions2-8℃

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-Dimethyl-1H-pyrazole-5-carbaldehyde?

The CAS number of 1,3-Dimethyl-1H-pyrazole-5-carbaldehyde is 25016-09-5.

What are the molecular formula and molecular weight of 1,3-Dimethyl-1H-pyrazole-5-carbaldehyde?

1,3-Dimethyl-1H-pyrazole-5-carbaldehyde has molecular formula C6H8N2O and molecular weight 124.141 g/mol.

What are the upstream and downstream products of 1,3-Dimethyl-1H-pyrazole-5-carbaldehyde?

For 1,3-Dimethyl-1H-pyrazole-5-carbaldehyde, Upstream Products: (1,3-Dimethyl-1H-pyrazol-5-yl)methanol.

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-Dimethyl-1H-pyrazole-5-carbaldehyde (CAS 25016-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29916-1 (accessed 2026-11-09).

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