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1919-96-6 Usage

General Description

Cyclohexanone p-nitrophenyl hydrazone, also known as CNPH, is a chemical compound commonly used for testing the presence of ketones. It is a crystalline solid with a yellow color and is sensitive to light. CNPH is often used in organic chemistry laboratories as a reagent to test for the presence of ketones in various substances. It forms a bright yellow precipitate when reacted with ketones, allowing for easy visual detection of the ketone compounds. Additionally, CNPH is also used as a reactant in the synthesis of other organic compounds and as a standard for calibration in gas chromatography-mass spectrometry (GC-MS) analysis.

Check Digit Verification of cas no

The CAS Registry Mumber 1919-96-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,1 and 9 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1919-96:
106 % 10 = 6
So 1919-96-6 is a valid CAS Registry Number.



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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017


1.1 GHS Product identifier

Product name cyclohexanone 4-nitrophenylhydrazone

1.2 Other means of identification

Product number -

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:1919-96-6 SDS

1919-96-6Relevant articles and documents

Insecticide evaporator comprising a stabilizer


, (2008/06/13)

Insecticide evaporator comprising at least one volatile phosphoric ester insecticide, an agent for stabilizing the said ester against decomposition by protonization and used in an amount of 0.2 to 20% based on the weight of phosphoric ester, characterized in that the stabilizing agent contains at least one compound selected from the compounds of the chemical class of 1,3-benzodioxoles and at least one diazene.

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