61698-59-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61698-59-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,6,9 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 61698-59:
(7*6)+(6*1)+(5*6)+(4*9)+(3*8)+(2*5)+(1*9)=157
157 % 10 = 7
So 61698-59-7 is a valid CAS Registry Number.
61698-59-7Relevant academic research and scientific papers
SYNTHESIS OF α-PHENYLSULFONYL CYCLOPENTANONES BY INTRAMOLECULAR CARBENOID CYCLIZATION OF α-DIAZO-β-KETO PHENYLSULFONES
Monteiro, Hugo J.
, p. 3459 - 3462 (2007/10/02)
Acyclic α-diazo-β-keto phenylsulfones undergo smooth intramolecular carbenoid cyclizations under rhodium (II) catalysis to afford α-phenyl sulfonyl cyclopentanones.
