108221-62-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108221-62-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,2,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108221-62:
(8*1)+(7*0)+(6*8)+(5*2)+(4*2)+(3*1)+(2*6)+(1*2)=91
91 % 10 = 1
So 108221-62-1 is a valid CAS Registry Number.
108221-62-1Relevant articles and documents
Ultrasound-Promoted Synthesis of Fluorinated β-Keto-γ-butyrolactones
Kitazume, Tomoya
, p. 855 - 857 (2007/10/02)
A number of β-keto-γ-butyrolactones and tetronic acids bearing a fluorine atom or a trifluoromethyl group were prepared by the ultrasound-promoted, Reformatsky-type reaction of O-trimethylsilylated cyanohydrins and ethyl α-fluoro(or α-trifluoromethyl)bromoacetate.