918158-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 918158-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,1,5 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 918158-53:
(8*9)+(7*1)+(6*8)+(5*1)+(4*5)+(3*8)+(2*5)+(1*3)=189
189 % 10 = 9
So 918158-53-9 is a valid CAS Registry Number.
918158-53-9Relevant articles and documents
A facile synthesis of isoflavone 7-O-glucuronides
Al-Maharik, Nawaf,Botting, Nigel P.
, p. 8703 - 8706 (2006)
An efficient method is presented for the synthesis of isoflavone 7-glucuronides using a N-(4-methoxyphenyl)-trifluoroacetimidate glucuronsyl donor. A 4-hexanoyl derivative of the isoflavone is used in the coupling reaction, both for protection and to impr