5-Phenyl-2-thienyl isocyanate

5-苯基-2-噻吩基异氰酸酯

Also known as: 2-isocyanato-5-phenylthiophene, 5-Phenyl-2-thienyl isocyanate, 5-phenyl-thien-2-yl isocyanate, Thiophene, 2-isocyanato-5-phenyl-, Thiophene, 2-isocyanato-5-phenyl- (9CI)

5-Phenyl-2-thienyl isocyanate (CAS 321309-34-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H7NOS and a molecular weight of 201.24400 g/mol. It is also known as 2-isocyanato-5-phenylthiophene, 5-phenyl-thien-2-yl isocyanate and Thiophene, 2-isocyanato-5-phenyl-. Key properties include a boiling point of 327.7ºC at 760mmHg, a density of 1.18g/cm3 and a flash point of 152ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
321309-34-6
Jingsj CID
J-1366162-5
Molecular Formula
C11H7NOS
Chinese Name
5-苯基-2-噻吩基异氰酸酯
Molecular Weight
201.24400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point327.7ºC at 760mmHg
Density1.18g/cm3
Flash Point152ºC

Frequently Asked Questions

What is the CAS number of 5-Phenyl-2-thienyl isocyanate?

The CAS number of 5-Phenyl-2-thienyl isocyanate is 321309-34-6.

What are the molecular formula and molecular weight of 5-Phenyl-2-thienyl isocyanate?

5-Phenyl-2-thienyl isocyanate has molecular formula C11H7NOS and molecular weight 201.24400 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Phenyl-2-thienyl isocyanate (CAS 321309-34-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1366162-5 (accessed 2026-10-22).

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