118227-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118227-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,2,2 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 118227-73:
(8*1)+(7*1)+(6*8)+(5*2)+(4*2)+(3*7)+(2*7)+(1*3)=119
119 % 10 = 9
So 118227-73-9 is a valid CAS Registry Number.
118227-73-9Relevant articles and documents
Synthesis of Further Naturally Occurring 5-Methylcoumarins
Wolfrum, Christian,Bohlmann, Ferdinand
, p. 295 - 298 (2007/10/02)
Starting with 4-hydroxy-5-methylcoumarin (6) the coumarins isolated from the tribe Mutisieae namely rac-onognaphalin (1), (+/-)-triptispinocoumarin (2), 4-coumarin (3), (+/-)-3-ethenyl-9-methyl-3-(4-methyl-3-p
