2-Pyrazoline

2-吡唑啉

Also known as: 2-Pyrazoline, 4,5-dihydro-1H-pyrazole, pyrazoline

2-Pyrazoline (CAS 109-98-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H6N2 and a molecular weight of 70.09310 g/mol. It is also known as 4,5-dihydro-1H-pyrazole and pyrazoline. Key properties include a boiling point of 144ºC and a density of 1.02 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
109-98-8
Jingsj CID
J-1031802-5
Molecular Formula
C3H6N2
Chinese Name
2-吡唑啉
Molecular Weight
70.09310 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point144ºC
Density1.02 g/cm3
Exact Mass70.05310
PSA24.39000

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 2-Pyrazoline?

The CAS number of 2-Pyrazoline is 109-98-8.

What are the molecular formula and molecular weight of 2-Pyrazoline?

2-Pyrazoline has molecular formula C3H6N2 and molecular weight 70.09310 g/mol.

What are the upstream and downstream products of 2-Pyrazoline?

For 2-Pyrazoline, Upstream Products: Pyrazole, Acrolein, Diazomethane; Downstream Products: Pyrazole.

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

Last updated:

How to cite: Jingsj. "2-Pyrazoline (CAS 109-98-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1031802-5 (accessed 2026-10-28).

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