109561-92-4 Usage
Preparation
Obtained by treatment of ethyl [(2-methoxybenzoyl)-(4-methoxyphenyl)]acetate with boiling pyridinium chloride for 20 min (ca. 220°) (48%).
Check Digit Verification of cas no
The CAS Registry Mumber 109561-92-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,6 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109561-92:
(8*1)+(7*0)+(6*9)+(5*5)+(4*6)+(3*1)+(2*9)+(1*2)=134
134 % 10 = 4
So 109561-92-4 is a valid CAS Registry Number.
109561-92-4Relevant academic research and scientific papers
Structure-Activity Relationship of Antiestrogens. Phenolic Analogues of 2,3-Diaryl-2H-1-benzopyrans
Sharma, Arun P.,Saeed, Ashraf,Durani, Susheel,Kapil, Randhir S.
, p. 3222 - 3229 (2007/10/02)
Phenolic analogues of 2--3-phenyl-2H-1-benzopyran (1), a novel antiestrogen, were synthesized and evaluated for their structure-activity relationship.Incorporation of OH at position 7 was found to improve receptor affinity of
