90381-47-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90381-47-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,8 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90381-47:
(7*9)+(6*0)+(5*3)+(4*8)+(3*1)+(2*4)+(1*7)=128
128 % 10 = 8
So 90381-47-8 is a valid CAS Registry Number.
90381-47-8Relevant articles and documents
Reductive Methylation of Naphthoic Esters
Basu, Basudeb,Mukherjee, Debabrata
, p. 105 - 106 (2007/10/02)
Reductive methylation of the naphthoic esters (3), (9), (13), and (15) was carried out in distilled liquid ammonia in the presence of sodium to give the esters (19), (20), (21), and (22), respectively.