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:
(6*1)+(5*9)+(4*1)+(3*9)+(2*9)+(1*6)=106
106 % 10 = 6
So 1919-96-6 is a valid CAS Registry Number.
1919-96-6Relevant articles and documents
Insecticide evaporator comprising a stabilizer
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, (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.
