87693-79-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87693-79-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,9 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87693-79:
(7*8)+(6*7)+(5*6)+(4*9)+(3*3)+(2*7)+(1*9)=196
196 % 10 = 6
So 87693-79-6 is a valid CAS Registry Number.
87693-79-6Relevant articles and documents
Process for the production of (±)-4-oxo-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinoline derivatives
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, (2008/06/13)
This invention discloses a process for the preparation of (±)-4-oxo-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinoline derivatives which comprises conducting an intramolecular cyclization reaction of the compounds of formulas II III in an acid medium. STR1