(2R,2'S,3'aR,7'aR,4''R,5''S)-4''-hydroxy-5''-methyl-3'a,6',7',7'a,3'',4'',5'',6''-octahydrodispiropyran> is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 124649-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,6,4 and 9 respectively; the second part has 2 digits, 5 and 5 respectively. Calculate Digit Verification of CAS Registry Number 124649-55: (8*1)+(7*2)+(6*4)+(5*6)+(4*4)+(3*9)+(2*5)+(1*5)=134 134 % 10 = 4 So 124649-55-4 is a valid CAS Registry Number.