106921-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 106921-09-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,9,2 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 106921-09:
(8*1)+(7*0)+(6*6)+(5*9)+(4*2)+(3*1)+(2*0)+(1*9)=109
109 % 10 = 9
So 106921-09-9 is a valid CAS Registry Number.
106921-09-9Relevant academic research and scientific papers
SYNTHESIS OF 2,3-DIPHENYL-4H-BENZOFUROFUROBENZOPYRAN-4-ONES AND 2,3-DIPHENYL-4h-BENZOFUROPYRROLOBENZOPYRAN-4-ONES
Ahluwalia, Vinod Kumar,Adhikari, Raju,Singh, Rishi Pal
, p. 1919 - 1923 (2007/10/02)
The synthesis of 2,3-diphenyl-4H-benzofurofurobenzopyran-4-ones (1,5,6) and 2,3-diphenyl-4H-benzofuropyrrolobenzopyran-4-ones (15,18) is described.
