135420-35-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135420-35-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,4,2 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 135420-35:
(8*1)+(7*3)+(6*5)+(5*4)+(4*2)+(3*0)+(2*3)+(1*5)=98
98 % 10 = 8
So 135420-35-8 is a valid CAS Registry Number.
135420-35-8Relevant articles and documents
An improved synthesis of α,β methylenic cyclic ketones
Depreux,Moussavi,Lesieur
, p. 1541 - 1545 (1992)
This communication describes a convenient two steps procedure for the preparation of α,β methylenic cyclic ketones from arylmethyl ketones involving a preformed Mannich reagent.