1003313-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1003313-21-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,3,3,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1003313-21:
(9*1)+(8*0)+(7*0)+(6*3)+(5*3)+(4*1)+(3*3)+(2*2)+(1*1)=60
60 % 10 = 0
So 1003313-21-0 is a valid CAS Registry Number.
1003313-21-0Relevant articles and documents
Observation of an acryloyl-thiamin diphosphate adduct in the first step of clavulanic acid biosynthesis
Merski, Matthew,Townsend, Craig A.
, p. 15750 - 15751 (2007)
The first committed biosynthetic step toward clavulanic acid, the clinically important β-lactamase inhibitor, is catalyzed by the thiamin diphosphate (ThDP)-dependent enzyme N2-(2-carboxyethyl)arginine synthase (CEAS). This protein carries out