104783-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104783-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,7,8 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104783-91:
(8*1)+(7*0)+(6*4)+(5*7)+(4*8)+(3*3)+(2*9)+(1*1)=127
127 % 10 = 7
So 104783-91-7 is a valid CAS Registry Number.
104783-91-7Relevant academic research and scientific papers
SYNTHESIS OF NATURALLY OCCURRING 2,5-DIALKYLCHROMONES. PART 1. SYNTHESIS OF ALOESONE AND ALOESOL
Gramatica, Paola,Gianotti, M. Pia,Speranza, Giovanna,Manitto, Paolo
, p. 743 - 750 (2007/10/02)
A number of 2-alkyl-7-alkoxy ( or hydroxy)-5-methyl-chromones, including naturally occurring aloesone and aloesol, were synthesized starting from ethyl orsellinate via β-keto-sulfoxides as intermediates.
