102563-59-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102563-59-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,5,6 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 102563-59:
(8*1)+(7*0)+(6*2)+(5*5)+(4*6)+(3*3)+(2*5)+(1*9)=97
97 % 10 = 7
So 102563-59-7 is a valid CAS Registry Number.
102563-59-7Relevant articles and documents
Synthesis of Dialkyl Hex-2-yne-1,6-dioates and Hept-2-yne-1,7-dioates
Abell, A. D.,Heinicke, G. W.,Massy-Westropp, R. A.
, p. 764 - 766 (1985)
The title compounds are prepared by flash vacuum pyrolysis of the corresponding phosphoranes, obtained from succinic or glutaric anhydrides and ethoxycarbonylmethylenetriphenylphosphorane.