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3,4-Dimethylisoxazol-5-amine

Also known as: 5-Amino-3,4-dimethylisoxazole, 5-Amino-3,4-dimethyl-isoxazole, 3,4-Dimethyl-5-isoxazolamine, 3,4-dimethyl-1,2-oxazol-5-amine, 5-Isoxazolamine, 3,4-dimethyl-, 3,4-dimethyl-5-aminoisoxazole, 3,4-dimethylisoxazol-5-ylamine

3,4-Dimethylisoxazol-5-amine (CAS 19947-75-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H8N2O and a molecular weight of 112.13000 g/mol. Key properties include a melting point of 118-122 °C(lit.), a boiling point of 246ºC at 760 mmHg, a density of 1.118 g/cm3 and a flash point of 102.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19947-75-2
Jingsj CID
J-1504398-8
Molecular Formula
C5H8N2O
Molecular Weight
112.13000 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point118-122 °C(lit.)
Boiling Point246ºC at 760 mmHg
Density1.118 g/cm3
Flash Point102.6ºC
Exact Mass112.06400
PSA52.05000
LogP1.45480
Vapor Pressure0.0278mmHg at 25°C
Refractive Index1.52

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 3,4-Dimethylisoxazol-5-amine?

The CAS number of 3,4-Dimethylisoxazol-5-amine is 19947-75-2.

What are the molecular formula and molecular weight of 3,4-Dimethylisoxazol-5-amine?

3,4-Dimethylisoxazol-5-amine has molecular formula C5H8N2O and molecular weight 112.13000 g/mol.

What are the upstream and downstream products of 3,4-Dimethylisoxazol-5-amine?

For 3,4-Dimethylisoxazol-5-amine, Upstream Products: 2-methyl-3-oxobutanenitrile, Sulfisoxazole; Downstream Products: N-(3,4-dimethyl-5-isoxazolyl)-4-nitrobenzenesulfonamide, 4,5-Dimethyl-1H-imidazol-2(3H)-one, Sulfisoxazole.

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

Last updated:

How to cite: Jingsj. "3,4-Dimethylisoxazol-5-amine (CAS 19947-75-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504398-8 (accessed 2026-11-09).

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