635303-49-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 635303-49-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,5,3,0 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 635303-49:
(8*6)+(7*3)+(6*5)+(5*3)+(4*0)+(3*3)+(2*4)+(1*9)=140
140 % 10 = 0
So 635303-49-0 is a valid CAS Registry Number.
635303-49-0Relevant articles and documents
A Novel Approach to Substituted 2H-Azirines
Katritzky, Alan R.,Wang, Mingyi,Wilkerson, Chavon R.,Yang, Hongfang
, p. 9105 - 9108 (2007/10/03)
2-(Benzotriazol-1-yl)-2H-azirines 4a-c, obtained by treatment of oximes 2a-c with tosyl chloride and aqueous KOH, were reacted with benzylmagnesium bromide or 4-methylbenzylmagnesium bromide in the presence of zinc chloride to give 2-benzyl-2H-azirines 5a