97204-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97204-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,0 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 97204-90:
(7*9)+(6*7)+(5*2)+(4*0)+(3*4)+(2*9)+(1*0)=145
145 % 10 = 5
So 97204-90-5 is a valid CAS Registry Number.
97204-90-5Relevant articles and documents
NEW SILA-ANALOGUES OF CYCLIC NUCLEOTIDES, 3',5',-O-SILANEDIYL NUCLEOSIDES
Furusawa, K.,Katsura, T.
, p. 887 - 890 (1985)
Treatment of nucleosides with di-tert-butyldichlorosilane in the presence of imidazole in DMF gave new sila-analogues of cyclic nucleotides which contain a rigid trans(1,2)-fused 6 to 5 membered ring system.