1221273-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221273-91-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,2,7 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1221273-91:
(9*1)+(8*2)+(7*2)+(6*1)+(5*2)+(4*7)+(3*3)+(2*9)+(1*1)=111
111 % 10 = 1
So 1221273-91-1 is a valid CAS Registry Number.
1221273-91-1Relevant articles and documents
MODULATORS FOR AMYLOID BETA
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Page/Page column 17, (2010/04/28)
The invention relates to compounds of formula (I) wherein R1 is hydrogen, lower alkyl or is lower alkyl substituted by hydroxy; R2 is hydrogen, lower alkoxy or lower alkyl; R3 /R4 are independently from each other hydrogen, halogen, lower alkyl, C(O)O-low