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136859-17-1

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136859-17-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136859-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,5 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 136859-17:
(8*1)+(7*3)+(6*6)+(5*8)+(4*5)+(3*9)+(2*1)+(1*7)=161
161 % 10 = 1
So 136859-17-1 is a valid CAS Registry Number.

136859-17-1Relevant articles and documents

Sequential Addition of 2-Potassio-2-nitropropane and Oxygen to 4-Arylidene-oxazol-5-ones: A New Method for 2-Aryl Butenoic Acid Imides

Lalitha, N.,Bhalerao, U. T.,Iyengar, D. S.

, p. 897 - 899 (2007/10/02)

The regiospecific addition of 2-potassio-2-nitropropane to the 4-arylidene-oxazol-5-ones followed by oxygenation led to 2-arylbutenoic acid imides, the key intermediate for several pharmacodynamic compounds in high yields.

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