163770-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163770-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,7,7 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 163770-87:
(8*1)+(7*6)+(6*3)+(5*7)+(4*7)+(3*0)+(2*8)+(1*7)=154
154 % 10 = 4
So 163770-87-4 is a valid CAS Registry Number.
163770-87-4Relevant academic research and scientific papers
Synthesis of substituted 2,3,5,6-tetraarylbenzo[1,2-b:5,4-b']difurans
Abdul-Aziz,Auping,Meador
, p. 1303 - 1308 (2007/10/02)
A series of substituted 2,3,5,6-tetraarylbenzo[1,2-b:5,4-b']difurans 1 was synthesized. This synthesis is based upon the photocyclization of 2,5-dibenzoylresorcinol dibenzyl ethers to the corresponding tetrahydrobenzo[1,2-b:5,4-b']difurans. Treatment of t
