1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE

Also known as: 1-(2-thienyl)-5(4H)-tetrazolinone, 1-(2-thienyl)tetrazolin-5(4H)-one, 1-(thiophen-2-yl)-4,5-dihydro-1H-1,2,3,4-tetrazol-5-one, 1-thien-2-yl-1,4-dihydro-5H-tetrazol-5-one, 1-thiophen-2-yl-2H-tetrazol-5-one, 5H-Tetrazol-5-one,1,2-dihydro-1-(2-thienyl), 1-(Thiophen-2-yl)-1H-tetrazol-5(4H)-one

1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE (CAS 141946-05-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4OS and a molecular weight of 168.17600 g/mol. Key properties include a boiling point of 242.6ºC at 760mmHg, a density of 1.81g/cm3 and a flash point of 100.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 141946-05-6
Jingsj CID: J-1502163-3
Molecular Formula: C₅H₄N₄OS
Molecular Weight: 168.17600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	242.6ºC at 760mmHg
Density	1.81g/cm3
Flash Point	100.5ºC
Exact Mass	168.01100
PSA	92.07000
LogP	0.42940
Vapor Pressure	0.0337mmHg at 25°C
Refractive Index	1.875

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 1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE?

The CAS number of 1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE is 141946-05-6.

What are the molecular formula and molecular weight of 1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE?

1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE has molecular formula C5H4N4OS and molecular weight 168.17600 g/mol.

What are the upstream and downstream products of 1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE?

For 1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE, Upstream Products: 2-Thiophenecarbonyl chloride, Azidotrimethylsilane.

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. "1-THIEN-2-YL-1,4-DIHYDRO-5H-TETRAZOL-5-ONE (CAS 141946-05-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502163-3 (accessed 2026-11-09).

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