137898-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137898-11-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,9 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137898-11:
(8*1)+(7*3)+(6*7)+(5*8)+(4*9)+(3*8)+(2*1)+(1*1)=174
174 % 10 = 4
So 137898-11-4 is a valid CAS Registry Number.
137898-11-4Relevant articles and documents
TROPANE COMPOUNDS
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Page/Page column 387-388, (2009/05/30)
A compound according to Formula I or II: (I) or (II) wherein R1, R1b, R2, L1, and L2 and L2b are as defined in the specification, pharmaceutical compositions thereof, and methods of use thereof.
