143303-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143303-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,3,0 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143303-04:
(8*1)+(7*4)+(6*3)+(5*3)+(4*0)+(3*3)+(2*0)+(1*4)=82
82 % 10 = 2
So 143303-04-2 is a valid CAS Registry Number.
143303-04-2Relevant academic research and scientific papers
Approaches towards synthesis of neohydnocarpin skeleton
Goyal, Samta,Parthasarathy, M R
, p. 391 - 395 (2007/10/02)
2,3,10-Trimethoxy-5-phenyl-5,6-dihydro-7H-benzoxanthene-7-one (V) and 2,3,8,10-tetramethoxy-5-phenyl-5,6-dihydro-7H-benzoxanthene-7-one (XVI) have been obtained by photocyclization of appropriate 3-substituted flavone derivatives.
