13020-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13020-93-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,2 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13020-93:
(7*1)+(6*3)+(5*0)+(4*2)+(3*0)+(2*9)+(1*3)=54
54 % 10 = 4
So 13020-93-4 is a valid CAS Registry Number.
13020-93-4Relevant articles and documents
FLUORINE RECOGNITION AT THE ACTIVE SITE OF (N-(4-FLUOROPHENYL)-N-PHENYLCARBAMOYL)-α-CHYMOTRYPSIN
Cairi, M.,Gerig, J. T.
, p. 3640 - 3643 (1984)
N-(4-fluorophenyl)-N-phenylcarbamoyl chloride reacts with α-chymotrypsin to give a covalenty modified protein which is devoid of catalytic activity.The fluorophenyl ring of this protein may be found in two magnetically distinct environments; fluorine chem
