166959-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166959-85-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,9,5 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 166959-85:
(8*1)+(7*6)+(6*6)+(5*9)+(4*5)+(3*9)+(2*8)+(1*5)=199
199 % 10 = 9
So 166959-85-9 is a valid CAS Registry Number.
166959-85-9Relevant academic research and scientific papers
Heterocyclic derivatives
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, (2008/06/13)
Compounds of formula (I) wherein R1 is hydrogen or hydroxy; R2 is hydrogen; or R1 and R2 are joined together so that CR1 14 CR2 is a double bond; X is selected from --Ch2 CH
