158609-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158609-73-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,6,0 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 158609-73:
(8*1)+(7*5)+(6*8)+(5*6)+(4*0)+(3*9)+(2*7)+(1*3)=165
165 % 10 = 5
So 158609-73-5 is a valid CAS Registry Number.
158609-73-5Relevant academic research and scientific papers
SYNTHESIS OF SUBSTITUTED ANTHRACENES FROM STERICALLY HINDERED 1,4-METHYLENEBENZOQUINONES
Komissarov, V.N.
, p. 1536 - 1539 (2007/10/02)
In polyphosphoric ester or trifluoroacetic acid 2,6-di(tert-butyl)-1,4-methylenebenzoquinones with dimethoxyphenyl substituents at the methylene carbon atom give good yields of anthracene derivatives.
