2-phenyl-(5at,9at)-5,5a,9a,10-tetrahydro-5r,10c-epioxido-[1,2,4]triazolo[1,2-b]phthalazine-1,3-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 27038-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,0,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 27038-23: (7*2)+(6*7)+(5*0)+(4*3)+(3*8)+(2*2)+(1*3)=99 99 % 10 = 9 So 27038-23-9 is a valid CAS Registry Number.