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1203591-42-7

1203591-42-7

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1203591-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1203591-42-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,5,9 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1203591-42:
(9*1)+(8*2)+(7*0)+(6*3)+(5*5)+(4*9)+(3*1)+(2*4)+(1*2)=117
117 % 10 = 7
So 1203591-42-7 is a valid CAS Registry Number.

1203591-42-7Downstream Products

1203591-42-7Relevant articles and documents

Three-component synthesis of partially hydrogenated quinolines from 3-substituted chromones, dimedone, and ammonium acetate

Sosnovskikh, V. Ya.,Irgashev,Demkovich

, p. 2210 - 2213 (2008)

Reaction of 3-R-chromones with dimedone and ammonium acetate leads to 2-(2-hydroxyaryl)-7,7-dimethyl-7,8-dihydroquinolin-5(6H)-ones (R = CF 3CO, H), 3-(2-hydroxyaroyl)-7,7-dimethyl-7,8-dihydroquinolin-5(6H)- ones (R = CHO), and 8,8-dimethyl-8H-chromeno[2,3-b]quinoline-10,12(7H,9H)-diones (R = CN) depending on the nature of substituent R.

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