4-(1H-Pyrazol-1-yl)benzaldehyde

4-(1H-吡唑-1-基)苯甲醛

Also known as: 4-Pyrazol-1-yl-benzaldehyde, 4-(1H-pyrazol-1-yl)benzaldehyde, 4-(1-pyrazolyl)benzaldehyde, Benzaldehyde, 4-(1H-pyrazol-1-yl)-, CHEMBRDG-BB 4004820, MFCD02681938, TIMTEC-BB SBB010131, ASINEX-REAG BAS 08767263

4-(1H-Pyrazol-1-yl)benzaldehyde (CAS 99662-34-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O and a molecular weight of 172.183 g/mol. It is also known as 4-Pyrazol-1-yl-benzaldehyde, 4-(1H-pyrazol-1-yl)benzaldehyde and 4-(1-pyrazolyl)benzaldehyde. Key properties include a melting point of 82-83ºC, a boiling point of 310.1±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 141.3±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99662-34-7
Jingsj CID
J-1328900-3
Molecular Formula
C10H8N2O
Chinese Name
4-(1H-吡唑-1-基)苯甲醛
Molecular Weight
172.183 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point82-83ºC
Boiling Point310.1±25.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point141.3±23.2 °C
Exact Mass172.063660
PSA34.89000
LogP1.54
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.605

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 4-(1H-Pyrazol-1-yl)benzaldehyde?

The CAS number of 4-(1H-Pyrazol-1-yl)benzaldehyde is 99662-34-7.

What are the molecular formula and molecular weight of 4-(1H-Pyrazol-1-yl)benzaldehyde?

4-(1H-Pyrazol-1-yl)benzaldehyde has molecular formula C10H8N2O and molecular weight 172.183 g/mol.

What are the upstream and downstream products of 4-(1H-Pyrazol-1-yl)benzaldehyde?

For 4-(1H-Pyrazol-1-yl)benzaldehyde, Upstream Products: Pyrazole, 4-Fluorobenzaldehyde, 4-Bromobenzaldehyde; Downstream Products: Ethyl 4-(1H-pyrazol-1-yl)benzoate.

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

Last updated:

How to cite: Jingsj. "4-(1H-Pyrazol-1-yl)benzaldehyde (CAS 99662-34-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1328900-3 (accessed 2026-10-28).

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