804539-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 804539-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,5,3 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 804539-13:
(8*8)+(7*0)+(6*4)+(5*5)+(4*3)+(3*9)+(2*1)+(1*3)=157
157 % 10 = 7
So 804539-13-7 is a valid CAS Registry Number.
804539-13-7Relevant academic research and scientific papers
7-Iodo-5-aza-7-deazaguanine: Syntheses of anomeric D- and L-configured 2-deoxyribonucleosides
Lin, Wenqing,Zhang, Xiaomei,Seela, Frank
, p. 2235 - 2244 (2007/10/03)
Iodination of N2-isobutyryl-5-aza-7-deazaguanine (7) with N-iodosuccinimide (NIS) gave 7-iodo-N2-isobutyryl-5-aza-7- deazaguanine (8) in a regioselective reaction (Scheme 1). Nucleobase-anion glycosylation of 8 with 2-deoxy-3,5-di-O-