(1RS,2SR,6RS,7SR,8SR)-6,7-dihydroxy-6,7-O-isopropylidene-2,10,10-trimethyltricyclo<6.3.0.02,6>undecane-3,4,11-trione 4-dimethyl acetal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 73840-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,4 and 0 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 73840-70: (7*7)+(6*3)+(5*8)+(4*4)+(3*0)+(2*7)+(1*0)=137 137 % 10 = 7 So 73840-70-7 is a valid CAS Registry Number.
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