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75644-44-9

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75644-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75644-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,4 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 75644-44:
(7*7)+(6*5)+(5*6)+(4*4)+(3*4)+(2*4)+(1*4)=149
149 % 10 = 9
So 75644-44-9 is a valid CAS Registry Number.

75644-44-9Downstream Products

75644-44-9Relevant articles and documents

The Chemistry of o-Phenylene Di-isothiocyanate. Part 1. Some Reactions with N-Nucleophiles

Griffiths, David,Hull, Roy,Seden, Timothy P.

, p. 1240 - 1244 (2007/10/02)

Reactions of o-phenylene di-isothiocyanate are described with a variety of nitrogen nucleophiles.Primary and secondary amines and also substituted hydrazines give 1:1 reaction products, 1-substituted thiocarbamoyl benzimidazoline-2-thiones.Hydrazine gives a 2:1 reaction product, to be regarded as a hydrazine salt.The products from primary amines are relatively unstable, yielding isothiocyanates and benzimidazoline-2-thione.Some Schiff bases and derivatives of isoquinoline give rise to thiadiazinobenzimidazoles.

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