(-)-<3'S-3'α(S*),8'aβ>-8-benzyloxy-1-bromo-5-methoxy-3,4,6',7',8',8'a-hexahydrospiropyrrolo<2,1-c><1,4>oxazine>-1',4'-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 81509-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,0 and 9 respectively; the second part has 2 digits, 5 and 5 respectively. Calculate Digit Verification of CAS Registry Number 81509-55: (7*8)+(6*1)+(5*5)+(4*0)+(3*9)+(2*5)+(1*5)=129 129 % 10 = 9 So 81509-55-9 is a valid CAS Registry Number.
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