81850-33-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81850-33-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,5 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81850-33:
(7*8)+(6*1)+(5*8)+(4*5)+(3*0)+(2*3)+(1*3)=131
131 % 10 = 1
So 81850-33-1 is a valid CAS Registry Number.
81850-33-1Relevant academic research and scientific papers
Cook, Stuart,Taylor, Richard J.K.
, p. 5275 - 5278 (1981)
The preparation of the bicyclic alkenyl sulphoxides 1 (n = 1 and 2; R = CH2CH3) from the alkynyl sulphenic acids 2 is described.
