91491-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91491-54-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,9 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91491-54:
(7*9)+(6*1)+(5*4)+(4*9)+(3*1)+(2*5)+(1*4)=142
142 % 10 = 2
So 91491-54-2 is a valid CAS Registry Number.
91491-54-2Relevant articles and documents
ROSE BENGAL DERIVATIVES AS SINGLET OXYGEN SENSITIZERS
Lamberts, J. J. M.,Neckers, D. C.
, p. 2183 - 2190 (2007/10/02)
Derivatives of Rose Bengal are reported and the relationships between subtle structural and dramatic changes in photophysical properties pointed out.