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3-Pentenoic acid, 5-cyano-, also known as 5-cyanopent-3-enoic acid, is a chemical compound with the molecular formula C6H7NO2. It is a derivative of pentenoic acid, featuring a cyano group (-CN) at the 5th carbon position and a double bond between the 3rd and 4th carbon atoms. This organic compound is characterized by its acidic properties due to the presence of the carboxyl group (-COOH) at the 3rd carbon position. 5-Cyanopent-3-enoic acid is a versatile building block in organic synthesis, used in the preparation of various pharmaceuticals, agrochemicals, and other specialty chemicals. Its unique structure allows for a range of chemical reactions, including nucleophilic addition, Michael addition, and cycloaddition, making it a valuable intermediate in the synthesis of complex molecules.

821-27-2

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821-27-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 821-27-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,2 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 821-27:
(5*8)+(4*2)+(3*1)+(2*2)+(1*7)=62
62 % 10 = 2
So 821-27-2 is a valid CAS Registry Number.

821-27-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-cyanopent-3-enoic acid

1.2 Other means of identification

Product number -
Other names 3-Pentenoic acid,5-cyano

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:821-27-2 SDS

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