4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile

Also known as: Iso Letrozole, Letrozole USP Related Compound A, Letrozole EP Impurity A, Letrozole Impurity A, Letrozole Related Compound A, 4,4'-(4H-1,2,4-triazol-4-ylmethylene)bisbenzonitrile, 4-[(4-cyanophenyl)-(1,2,4-triazol-4-yl)methyl]benzonitrile, UNII-7VSW8QP34K

4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile (CAS 112809-52-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C17H11N5 and a molecular weight of 285.30300 g/mol. Key properties include a boiling point of 563.5ºC at 760mmHg, a density of 1.21g/cm3 and a flash point of 294.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 112809-52-6
Jingsj CID: J-1430471-0
Molecular Formula: C₁₇H₁₁N₅
Molecular Weight: 285.30300 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	563.5ºC at 760mmHg
Density	1.21g/cm3
Flash Point	294.6ºC
Exact Mass	285.10100
PSA	78.29000
LogP	2.65916
Vapor Pressure	1.01E-12mmHg at 25°C
Refractive Index	1.665

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile?

The CAS number of 4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile is 112809-52-6.

What are the molecular formula and molecular weight of 4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile?

4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile has molecular formula C17H11N5 and molecular weight 285.30300 g/mol.

What are the upstream and downstream products of 4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile?

For 4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile, Upstream Products: 1H-1,2,4-triazole, 4,4'-(1-Bromomethyl)bisbenzonitrile, 4-((4H-1,2,4-Triazol-4-yl)methyl)benzonitrile.

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. "4,4'-(4H-1,2,4-Triazol-4-ylmethylene)dibenzonitrile (CAS 112809-52-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1430471-0 (accessed 2026-11-06).

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