64839-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64839-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,3 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 64839-28:
(7*6)+(6*4)+(5*8)+(4*3)+(3*9)+(2*2)+(1*8)=157
157 % 10 = 7
So 64839-28-7 is a valid CAS Registry Number.
64839-28-7Relevant articles and documents
Carotenoids and related polyenes. Part 6. Stereoselective synthesis of astaxanthin analogues and their antioxidant activities
Yamano,Sato,Watanabe,Namikawa,Miki,Ito
, p. 1862 - 1869 (2007/10/03)
Astaxanthin analogues having various lengths of polyene chains are stereoselectively synthesized and their singlet-oxygen-quenching activities are examined.