138903-69-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138903-69-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,0 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138903-69:
(8*1)+(7*3)+(6*8)+(5*9)+(4*0)+(3*3)+(2*6)+(1*9)=152
152 % 10 = 2
So 138903-69-2 is a valid CAS Registry Number.
138903-69-2Relevant academic research and scientific papers
Hyatt,Little
, p. 215 - 217 (1991)
This paper reports on the preparation of carbohydrate sulfates by displacement of trifluoromethanesulfonates.
