4,5-dihydro-2-phenylthiazole-4-carboxylic acid

Also known as: 4,5-dihydro-2-phenyl-1,3-thiazole-4-carboxylic acid, 2-phenyl-4,5-dihydrothiazole-4-carboxylic acid, 4-Thiazolecarboxylic acid, 4,5-dihydro-2-phenyl-, 2-phenylthiazoline-4-carboxylic acid, 2-Phenyl-2-thiazoline-4-carboxylic acid, 2-Phenyl-2-thiazolin-4-carbonsaeure, 73-81

4,5-dihydro-2-phenylthiazole-4-carboxylic acid (CAS 19983-15-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO2S and a molecular weight of 207.24900 g/mol. Key properties include a boiling point of 415.4ºC at 760mmHg, a density of 1.37g/cm3 and a flash point of 205ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19983-15-4
Jingsj CID: J-1511336-7
Molecular Formula: C₁₀H₉NO₂S
Molecular Weight: 207.24900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	415.4ºC at 760mmHg
Density	1.37g/cm3
Flash Point	205ºC
Exact Mass	207.03500
PSA	74.96000
LogP	1.06880
Vapor Pressure	1.21E-07mmHg at 25°C
Refractive Index	1.669

Customs & Trade Information

HS Code	2934100090
Summary	2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4,5-dihydro-2-phenylthiazole-4-carboxylic acid?

The CAS number of 4,5-dihydro-2-phenylthiazole-4-carboxylic acid is 19983-15-4.

What are the molecular formula and molecular weight of 4,5-dihydro-2-phenylthiazole-4-carboxylic acid?

4,5-dihydro-2-phenylthiazole-4-carboxylic acid has molecular formula C10H9NO2S and molecular weight 207.24900 g/mol.

What are the upstream and downstream products of 4,5-dihydro-2-phenylthiazole-4-carboxylic acid?

For 4,5-dihydro-2-phenylthiazole-4-carboxylic acid, Downstream Products: 2-Phenyl-1,3-thiazole-4-carbaldehyde.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,5-dihydro-2-phenylthiazole-4-carboxylic acid (CAS 19983-15-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511336-7 (accessed 2026-11-09).

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