2-Phenyl-1,3-thiazole-4-carbaldehyde

Also known as: 2-Phenylthiazole-4-carbaldehyde, 4-Formyl-2-phenylthiazole, 2-Phenyl-4-formylthiazole, 4-Thiazolecarboxaldehyde, 2-phenyl-, 2-Phenyl-1,3-thiazole-4-carboxaldehyde, 2-Phenyl-4-formyl-thiazol, (4-Formyl-1,3-thiazol-2-yl)benzene

2-Phenyl-1,3-thiazole-4-carbaldehyde (CAS 20949-81-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H7NOS and a molecular weight of 189.234 g/mol. Key properties include a melting point of 51ºC, a boiling point of 353.0±34.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 167.3±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20949-81-9
Jingsj CID: J-1171527-8
Molecular Formula: C₁₀H₇NOS
Molecular Weight: 189.234 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	51ºC
Boiling Point	353.0±34.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	167.3±25.7 °C
Exact Mass	189.024841
PSA	58.20000
LogP	2.66
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.645

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 2-Phenyl-1,3-thiazole-4-carbaldehyde?

The CAS number of 2-Phenyl-1,3-thiazole-4-carbaldehyde is 20949-81-9.

What are the molecular formula and molecular weight of 2-Phenyl-1,3-thiazole-4-carbaldehyde?

2-Phenyl-1,3-thiazole-4-carbaldehyde has molecular formula C10H7NOS and molecular weight 189.234 g/mol.

What are the upstream and downstream products of 2-Phenyl-1,3-thiazole-4-carbaldehyde?

For 2-Phenyl-1,3-thiazole-4-carbaldehyde, Upstream Products: (2-Phenylthiazol-4-yl)methanol, 4-(Chloromethyl)-2-phenyl-1,3-thiazole, Thiobenzamide; Downstream Products: 1-(2-Phenyl-1,3-thiazol-4-yl)ethanone, 2-Phenylthiazole-4-carboxylic acid.

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. "2-Phenyl-1,3-thiazole-4-carbaldehyde (CAS 20949-81-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1171527-8 (accessed 2026-11-09).

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