189172-00-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189172-00-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,1,7 and 2 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 189172-00:
(8*1)+(7*8)+(6*9)+(5*1)+(4*7)+(3*2)+(2*0)+(1*0)=157
157 % 10 = 7
So 189172-00-7 is a valid CAS Registry Number.
189172-00-7Relevant academic research and scientific papers
Monophase solid solutions containing asymmetric pyrrolo ?4,3-c! pyrroles as hosts
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, (2008/06/13)
The present invention relates to a solid solution consisting of 60-90 mol-% of an asymmetric 2,5-dihydro-1,4-diketopyrrolo?3,4-c!pyrrole of the formula (I) STR1 in which G1 and G2 independently of one another are different substitute