(2R,2aS,2bS,3R,6aS,7aS)-3-Hydroxy-2-phenyl-2a,2b,6a,7a-tetrahydro-2H,3H-1,6,7-trioxa-cyclobuta[a]indene-4-carbaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 84281-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,8 and 1 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 84281-57: (7*8)+(6*4)+(5*2)+(4*8)+(3*1)+(2*5)+(1*7)=142 142 % 10 = 2 So 84281-57-2 is a valid CAS Registry Number.