1301176-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1301176-55-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,1,1,7 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1301176-55:
(9*1)+(8*3)+(7*0)+(6*1)+(5*1)+(4*7)+(3*6)+(2*5)+(1*5)=105
105 % 10 = 5
So 1301176-55-5 is a valid CAS Registry Number.
1301176-55-5Relevant articles and documents
2-Aryl-3,4-dihydropyrans as building blocks for organic synthesis: Ring-opening reactions with nucleophiles
Li, Minghao,Gu, Yanlong
, p. 8314 - 8320 (2011)
An electrophilic ring-opening reaction of 2-aryl-3,4-dihydropyran with many nucleophiles, such as thiophenols, thiols, benzenesulfinic acid, resorcin, 2-methylfuran, benzamide and allyltrimethylsilane, was developed. In the presence of an appropriate cata