78502-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78502-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,0 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78502-17:
(7*7)+(6*8)+(5*5)+(4*0)+(3*2)+(2*1)+(1*7)=137
137 % 10 = 7
So 78502-17-7 is a valid CAS Registry Number.
78502-17-7Relevant articles and documents
CROWN ETHERS CONTAINING TRANS DOUBLE BONDS
Merz, Andreas,Eichner, Manfred,Tomahogh, Robert
, p. 1319 - 1322 (1981)
The synthesis and spectroscopic properties of 18-crown-6-derivatives containing the E-α,β-dialkoxystilbene moiety as a ring member are described.These crown ethers are chiral but their complexing ability is drastically reduced as compared with the corresponding Z-isomers.