127716-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127716-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,1 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127716-80:
(8*1)+(7*2)+(6*7)+(5*7)+(4*1)+(3*6)+(2*8)+(1*0)=137
137 % 10 = 7
So 127716-80-7 is a valid CAS Registry Number.
127716-80-7Relevant articles and documents
REARRANGEMENT OF 1,3,5,8-TETRAOXYGENATED XANTHONES IN HOT AQUEOUS MORPHOLINE
Bennett, Graham J.,Lee, Hiok-Huang
, p. 7265 - 7268 (2007/10/02)
Aqueous morpholine demethylation of 2-prenyl-1-hydroxy-3,5,8-trimethoxyxanthone leads to a mixture of 1,3,5,8- and 1,3,7,8-tetraoxygenated xanthones.