189683-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189683-67-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,6,8 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 189683-67:
(8*1)+(7*8)+(6*9)+(5*6)+(4*8)+(3*3)+(2*6)+(1*7)=208
208 % 10 = 8
So 189683-67-8 is a valid CAS Registry Number.
189683-67-8Relevant articles and documents
Aminomethyl-2 3 8 9-tetrahydro-7H-1 4-dioxino?2 3-E!-indol-8-ones and derivatives
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, (2008/06/13)
The compounds of formula I: STR1 wherein R1 and R2 are, independently, hydrogen, alkyl, phenyl or benzyl; or R1 and R2, taken together, are benzylidene optionally substituted with R3 as defined below
