(2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one

Also known as: (2E,4Z)-4-(3-ETHYL-1,3-BENZOTHIAZOL-2(3H)-YLIDENE)-1-PHENYLBUT-2-EN-1-ONE, 2-BUTEN-1-ONE, 4-(3-ETHYL-2(3H)-BENZOTHIAZOLYLIDENE)-1-PHENYL-, 2-Buten-1-one,4-(3-ethyl-2(3H)-benzothiazolylidene)-1-phenyl, 3-Aethyl-2-(3-benzoylpropenyliden-1)-benzthiazolin, 4-(3-Aethyl-3H-benzothiazol-2-yliden)-1-phenyl-but-2-en-1-on, 4-(3-ethyl-1,3-benzothiazol-2-ylidene)-1-phenylbut-2-en-1-one, 4-(3-ethyl-3H-benzothiazol-2-ylidene)-1-phenyl-but-2-en-1-one

(2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one (CAS 35327-87-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C19H17NOS and a molecular weight of 307.40900 g/mol. Key properties include a boiling point of 429.6ºC at 760mmHg, a density of 1.23g/cm3 and a flash point of 213.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 35327-87-8
Jingsj CID: J-1021473-0
Molecular Formula: C₁₉H₁₇NOS
Molecular Weight: 307.40900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	429.6ºC at 760mmHg
Density	1.23g/cm3
Flash Point	213.6ºC
Exact Mass	307.10300
PSA	50.24000
LogP	4.22340
Refractive Index	1.689

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 (2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one?

The CAS number of (2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one is 35327-87-8.

What are the molecular formula and molecular weight of (2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one?

(2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one has molecular formula C19H17NOS and molecular weight 307.40900 g/mol.

What are the upstream and downstream products of (2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one?

For (2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one, Upstream Products: 3-ethyl-2-methylbenzothiazolium p-toluenesulfonate, Acetophenone, 3-Ethyl-2-methylbenzothiazolium iodide.

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. "(2E,4Z)-4-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)-1-phenylbut-2-en-1-one (CAS 35327-87-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1021473-0 (accessed 2026-11-09).

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