1,3,7,9-tetramethyl-5,9-dihydrodipyrimido<4,5-b:5',4'-e><1,4>thiazine-2,4,6,8(1H,3H,7H)-tetrone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 126401-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,4,0 and 1 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 126401-49: (8*1)+(7*2)+(6*6)+(5*4)+(4*0)+(3*1)+(2*4)+(1*9)=98 98 % 10 = 8 So 126401-49-8 is a valid CAS Registry Number.