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129633-30-3

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129633-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129633-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,3 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 129633-30:
(8*1)+(7*2)+(6*9)+(5*6)+(4*3)+(3*3)+(2*3)+(1*0)=133
133 % 10 = 3
So 129633-30-3 is a valid CAS Registry Number.

129633-30-3Relevant articles and documents

Hydrolysis of N-(2,2,2-trichloroethyl)arenesulfonamides

Rozentsveig,Levkovskaya,Mirskova,Kashik

, p. 1760 - 1764 (2007/10/03)

The direction of alkaline hydrolysis of N-(2,2,2-trichloro-1-R-ethyl)arenesulfonamides depends on the R substituent in the α-position with respect to the nitrogen atom. Substituents R having an n-donor heteroatom X promote cleavage of the C-N and C-X bonds to release the corresponding sulfonamide. Alkaline hydrolysis of N-(1-aryl-2,2,2-trichloroethyl)arenesulfonamides occurs chemoselectively at the trichloromethyl group. This reaction can be regarded as a preparative route to N-arylsulfonyl-α-arylglycines.

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