81238-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81238-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,3 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81238-56:
(7*8)+(6*1)+(5*2)+(4*3)+(3*8)+(2*5)+(1*6)=124
124 % 10 = 4
So 81238-56-4 is a valid CAS Registry Number.
81238-56-4Relevant academic research and scientific papers
M'Pati,Mangeney,Langlois
, p. 4405 - 4406 (1981)
Nb-oxides 2a and 2b in the presence of acetic anhydride led to products 5, 7 or 8 with participation of the indole nucleus during the fragmentation reaction.
