4513-01-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4513-01-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,1 and 3 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4513-01:
(6*4)+(5*5)+(4*1)+(3*3)+(2*0)+(1*1)=63
63 % 10 = 3
So 4513-01-3 is a valid CAS Registry Number.
4513-01-3Relevant articles and documents
Reactions of Sodium Borohydride in Acidic Media; XVI. N-Methylation of Amines with Paraformaldehyde/Trifluoroacetic Acid
Gribble, Gordon W.,Nutaitis, Charles F.
, p. 709 - 711 (2007/10/02)
Primary and secondary amines are N-methylated to afford tertiary amines with the combination of paraformaldehyde, sodium borohydride, and trifluoroacetic acid.