121974-71-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121974-71-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,7 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121974-71:
(8*1)+(7*2)+(6*1)+(5*9)+(4*7)+(3*4)+(2*7)+(1*1)=128
128 % 10 = 8
So 121974-71-8 is a valid CAS Registry Number.
121974-71-8Relevant articles and documents
Structural requirements for efficient cellular photoprotection by carotenoid derivatives
Kanofsky, Jeffrey R.,Sima, Paul D.
, p. 507 - 517 (2007/10/03)
We have synthesized five carotenoid derivatives: (1) Girard's reagent P (GRP)-retinal from GRP and retinal; (2) GRP-carotenal from GRP and β-apo-8′-carotenal; (3) Girard's reagent T (GRT)-carotenal from GRT and β-apo-8′-carotenal; (4) (GRP)2-ca