51423-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51423-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,4,2 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 51423-23:
(7*5)+(6*1)+(5*4)+(4*2)+(3*3)+(2*2)+(1*3)=85
85 % 10 = 5
So 51423-23-5 is a valid CAS Registry Number.
51423-23-5Relevant articles and documents
7-Methoxy-2,2-dimethyl-3-phenyl-4-(4-hydroxyphenyl)-2H-1-benzopyran
Ray,Sarkhel,Maulik,Lobkovsky,Clardy
, p. 134 - 136 (1998)
The crystal structure of the title compound, C24H22O3, shows that both the pendant phenyl substituents at C3 and C4 have a twist conformation, while the pyran ring adopts a distorted sofa conformation due to puckering at C2 by the dimethyl substitutions.