91633-07-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91633-07-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,3 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91633-07:
(7*9)+(6*1)+(5*6)+(4*3)+(3*3)+(2*0)+(1*7)=127
127 % 10 = 7
So 91633-07-7 is a valid CAS Registry Number.
91633-07-7Relevant articles and documents
o-Hydroxyaryl Diphosphonic Acids
Dhawan, Balram,Redmore, Derek
, p. 4018 - 4021 (2007/10/02)
Treatment of dialkyl aryl phosphates with n-butyllithium or lithium diisopropylamide results in a rearrangement that involves the fission of an oxygen-phosphorus bond and formation of a C-P bond yielding dialkyl (2-hydroxyaryl)phosphonates.A dialkyl (2-hy
