(1RS,2RS,7SR,9RS,10RS)-9-acetoxy-4,4,12,12-tetramethyl-3,5,11,13-tetraoxatricyclo<8.3.0.0>tridecane (1-O-acetyl-2,3:4,7-di-O-isopropylidene-pseudo-α-DL-galactopyranose) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 74522-86-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,2 and 2 respectively; the second part has 2 digits, 8 and 6 respectively. Calculate Digit Verification of CAS Registry Number 74522-86: (7*7)+(6*4)+(5*5)+(4*2)+(3*2)+(2*8)+(1*6)=134 134 % 10 = 4 So 74522-86-4 is a valid CAS Registry Number.
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