207505-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207505-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,5,0 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 207505-17:
(8*2)+(7*0)+(6*7)+(5*5)+(4*0)+(3*5)+(2*1)+(1*7)=107
107 % 10 = 7
So 207505-17-7 is a valid CAS Registry Number.
207505-17-7Relevant articles and documents
Generation of cyclohexyne and its diels-alder reaction with α-pyrones
Atanes, Nieves,Escudero, Sonia,Perez, Dolores,Guitian, Enrique,Castedo, Luis
, p. 3039 - 3040 (1998)
Cyclohexyne, which was generated from 2- (trimethylsilyl)cyclohexenyltriflate by fluoride promoted β-elimination, reacts with α-pyrones to afford the corresponding tetrahydronaphthalenes.