130208-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130208-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,0 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 130208-78:
(8*1)+(7*3)+(6*0)+(5*2)+(4*0)+(3*8)+(2*7)+(1*8)=85
85 % 10 = 5
So 130208-78-5 is a valid CAS Registry Number.
130208-78-5Relevant articles and documents
Synthesis of Benzopyran Derivatives, XV Preparation of Arylsulfonyloxy-2,2-dimethyl-2H-chromenes
Levai, Albert,Toth, Gabor,Szoelloesy, Aron,Timar, Tibor
, p. 403 - 411 (2007/10/02)
Arylsulfonyloxy-2,2-dimethyl-2H-chromenes (26-35) have been synthesized by reduction of arylsulfonyloxy-2,2-dimethyl-4-chromanones (6-15) followed by dehydration.