1489256-03-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1489256-03-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,8,9,2,5 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1489256-03:
(9*1)+(8*4)+(7*8)+(6*9)+(5*2)+(4*5)+(3*6)+(2*0)+(1*3)=202
202 % 10 = 2
So 1489256-03-2 is a valid CAS Registry Number.
1489256-03-2Relevant academic research and scientific papers
Synthesis of new furopyrans and angularly fused furopyranochromenes from 3-arylmethylidenefuran-2-ones
Anis'Kova,Egorova
, p. 1514 - 1516 (2014/01/06)
Reactions of 5-aryl-3-arylmethylidenefuran-2-ones with malononitrile gave 6-amino-2,4-diaryl-4Hfuro[2,3-b]pyran-5-carbonitriles and 2-aryl-5-imino-5H, 11bH-furo[3′,2′: 5,6]pyrano[3,4-c]chromen-6-amines as potentially biologically active substances.
