154207-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154207-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,2,0 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 154207-41:
(8*1)+(7*5)+(6*4)+(5*2)+(4*0)+(3*7)+(2*4)+(1*1)=107
107 % 10 = 7
So 154207-41-7 is a valid CAS Registry Number.
154207-41-7Relevant articles and documents
Trifluoromethylated heterocycles from β-trifluoroacetyl-lactams and -benzolactams
Bouillon,Ates,Janousek,Viehe
, p. 5075 - 5078 (1993)
Trifluoromethyl substituted heterocycles have been prepared by condensation of the new β-trifluoroacetyl-lactams 1 and -benzolactams 2 with methylhydrazine and benzamidine as bis-nucleophiles without opening of the lactam structure.