2,4-DICHLOROBENZENECARBALDEHYDE N-(2-CHLORO-4-QUINAZOLINYL)HYDRAZONE is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 129177-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,7 and 7 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 129177-13: (8*1)+(7*2)+(6*9)+(5*1)+(4*7)+(3*7)+(2*1)+(1*3)=135 135 % 10 = 5 So 129177-13-5 is a valid CAS Registry Number.