1,5-Diphenyl-3-(2-thienyl)formazan

1,5-二苯基-3-(2-噻吩基)甲臜

Also known as: STC FORMAZAN, (E)-1-Phenyl-2-[(E)-(phenylhydrazono)(2-thienyl)methyl]diazene, (E)-1-Phenyl-2-[(Z)-(phenylhydrazono)(2-thienyl)methyl]diazene, 1,5-Diphenyl-3-(thiophen-2-yl)formazan, Methanone, (2-phenyldiazenyl)-2-thienyl-, 2-phenylhydrazone, Methanone, [(E)-2-phenyldiazenyl]-2-thienyl-, 2-phenylhydrazone, (E)-, Methanone, [(E)-2-phenyldiazenyl]-2-thienyl-, 2-phenylhydrazone, (Z)-, N'-anilino-N-phenyliminothiophene-2-carboximidamide

1,5-Diphenyl-3-(2-thienyl)formazan (CAS 135984-01-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H14N4S and a molecular weight of 306.385 g/mol. It is also known as STC FORMAZAN, (E)-1-Phenyl-2-[(E)-(phenylhydrazono)(2-thienyl)methyl]diazene and (E)-1-Phenyl-2-[(Z)-(phenylhydrazono)(2-thienyl)methyl]diazene. Key properties include a melting point of 144ºC, a boiling point of 449.8±37.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 225.9±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
135984-01-9
Jingsj CID
J-7413-5
Molecular Formula
C17H14N4S
Chinese Name
1,5-二苯基-3-(2-噻吩基)甲臜
Molecular Weight
306.385 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point144ºC
Boiling Point449.8±37.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point225.9±26.5 °C

Frequently Asked Questions

What is the CAS number of 1,5-Diphenyl-3-(2-thienyl)formazan?

The CAS number of 1,5-Diphenyl-3-(2-thienyl)formazan is 135984-01-9.

What are the molecular formula and molecular weight of 1,5-Diphenyl-3-(2-thienyl)formazan?

1,5-Diphenyl-3-(2-thienyl)formazan has molecular formula C17H14N4S and molecular weight 306.385 g/mol.

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

Last updated:

How to cite: Jingsj. "1,5-Diphenyl-3-(2-thienyl)formazan (CAS 135984-01-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7413-5 (accessed 2026-10-23).

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