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2-Methylidenepentanenitrile, also known as 2-methyl-2-pentenenitrile or 2-methyl-2-penten-4-ynamide, is an organic compound with the chemical formula C6H9N. It is a colorless liquid with a pungent odor and is used as an intermediate in the synthesis of various chemicals, including pharmaceuticals and agrochemicals. The compound is characterized by its conjugated diene system and nitrile functional group, which contribute to its reactivity and potential applications in chemical transformations. It is typically produced through the dehydration of 2-methyl-2-penten-4-ol or through the addition of hydrogen cyanide to 2-methyl-1-butene. Due to its reactivity, 2-methylidenepentanenitrile is often used in the preparation of specialty polymers and other complex organic molecules.

3931-57-5

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3931-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3931-57-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,3 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3931-57:
(6*3)+(5*9)+(4*3)+(3*1)+(2*5)+(1*7)=95
95 % 10 = 5
So 3931-57-5 is a valid CAS Registry Number.

3931-57-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-methylidenepentanenitrile

1.2 Other means of identification

Product number -
Other names 2-Propyl-acrylonitril

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:3931-57-5 SDS

3931-57-5Downstream Products

3931-57-5Relevant academic research and scientific papers

Cryptocope rearrangement of 1,3-dicyano-5-phenyl-4,4-d2-hexa-2,5-diene. Chameleonic or centauric?

Doering, W. Von E.,Wang, Yonghui

, p. 10967 - 10975 (2007/10/03)

The 'centauric' model for evaluation of the effect of radical- stabilizing perturbations on the Cope rearrangement conjectures independent action of substituents that make conflicting electronic demands on the two halves of the transition region. The present test of this conjecture compares 1,3-dicyano-[5-protio]-hexa-1,5-diene (1(H)) and 2-phenylhexa-1,5-diene, with 1,3-dicyano-5-phenylhexa-1,5-diene (1(Ph)). Thermochemical information required for a proper comparison includes new data of the van't Hoff type on conjugative interaction of cyano with the carbon-carbon double bond, reevaluation of the radical-stabilizing potential of the cyano group on secondary and allyl radicals, comparison with the (reevaluated) stabilizing effect of cyano in 'nodal' positions of the Cope transition region, and determination of the enthalpy and entropy of activation of the cryptoCope rearrangement of otherwise Cope-incompetent, thermodynamically more stable hexa-2,5-dienes related by prototropy to the Cope-competent hexa-1,5-dienes above. The 'chameleonic' model is concluded to be unsatisfactory, while the 'centauric' is in better, if not complete, accord with experiment.

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