80902-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80902-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80902-91:
(7*8)+(6*0)+(5*9)+(4*0)+(3*2)+(2*9)+(1*1)=126
126 % 10 = 6
So 80902-91-6 is a valid CAS Registry Number.
80902-91-6Relevant academic research and scientific papers
Synthesis of the Mangostins
Lee, Hiok-Huang
, p. 3205 - 3213 (2007/10/02)
Acylation of 5,7-bisbenzyloxy-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran (10c) with 6,8-dimethoxy-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-5-carboxylic acid (9b) in the presence of trifluoroacetic anhydride gave 5,7-dibenzyloxy-3,4-dihydro-2,2-dimethyl-2H-1
