134638-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134638-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,6,3 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134638-91:
(8*1)+(7*3)+(6*4)+(5*6)+(4*3)+(3*8)+(2*9)+(1*1)=138
138 % 10 = 8
So 134638-91-8 is a valid CAS Registry Number.
134638-91-8Relevant articles and documents
Process for the preparation of cyclic amino acids and intermediates useful in the process
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, (2008/06/13)
Processes for the preparation of cyclic amino acid derivatives useful in the treatment of cerebral diseases such as epilepsy are disclosed. Novel intermediates useful in processes are also disclosed.