(2R,4'R,4a'S,6a'S,9'R,11a'R,11b'S)-4',11b'-dimethyldodecahydro-7'H-spiro[oxirane-2,8'-[6a,9]methanocyclohepta[a]naphthalene]-4'-carboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 80442-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,4,4 and 2 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 80442-69: (7*8)+(6*0)+(5*4)+(4*4)+(3*2)+(2*6)+(1*9)=119 119 % 10 = 9 So 80442-69-9 is a valid CAS Registry Number.
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