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75205-75-3

75205-75-3

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75205-75-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75205-75-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,0 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75205-75:
(7*7)+(6*5)+(5*2)+(4*0)+(3*5)+(2*7)+(1*5)=123
123 % 10 = 3
So 75205-75-3 is a valid CAS Registry Number.

75205-75-3Relevant articles and documents

Studies in Pyrazolone-Azo Dyes. Part II : Synthesis of Some 1-Anilinomalonyl-3-methyl-4-Substituted Phenyl-Azo-5-Pyrazolones

Jolly, V. S.,Shrivastava, A. K.,Singh, S. P.,Tiwari, K. S.

, p. 539 - 541 (2007/10/02)

Synthesis of some 1-anilinomalonyl-3-methyl-4-substituted phenyl-azo-5-pyrazolones is reported.Ethylacetoacetate on condensing with diazotised amines gave ethyl-α-substituted phenyl-azo-acetoacetates which on treatment with acid hydrazides of maloanilic acid series, in acetic acid, gave pyrazolone-azo dyes.These dyes impart mostly yellow colour to cotton, silk, wool and polyester fibres.None of the products show significant bacteriostatic or fungicidal activity.

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