90494-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90494-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,9 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 90494-18:
(7*9)+(6*0)+(5*4)+(4*9)+(3*4)+(2*1)+(1*8)=141
141 % 10 = 1
So 90494-18-1 is a valid CAS Registry Number.
90494-18-1Relevant academic research and scientific papers
SYNTHESIS OF 3-AMINO-2-CARBAMIMIDOYLPYRAZOLE C-NUCLEOSIDES AND ITS CYCLIZATION TO 4-AMINOPYRAZOLO-1,3,5-TRIAZINE C-NUCLEOSIDES
Chu, Chung K.
, p. 345 - 351 (2007/10/02)
4-Amino-8-(β-D-2,3-O-isopropylidene-5-O-tritylribofuranosyl)pyrazolo-1,3,5-triazine and its α-isomer were synthesized via 3-amino-2N-carbamimidoyl-4-(α and β-D-2',3'-O-isopropylidene-5'-O-tritylribofuranosyl)pyrazoles.
