225922-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 225922-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,5,9,2 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 225922-18:
(8*2)+(7*2)+(6*5)+(5*9)+(4*2)+(3*2)+(2*1)+(1*8)=129
129 % 10 = 9
So 225922-18-9 is a valid CAS Registry Number.
225922-18-9Relevant articles and documents
Purine derivatives having cyclopropane ring
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Example I-8, (2008/06/13)
The present invention is directed to a process for preparing a cyclopropane ring-cleaved purine derivative represented by the following formula: comprising hydrogenating a purine derivative having a cyclopropane ring represented by the following formula:
