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97731-03-8

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97731-03-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97731-03-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,3 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 97731-03:
(7*9)+(6*7)+(5*7)+(4*3)+(3*1)+(2*0)+(1*3)=158
158 % 10 = 8
So 97731-03-8 is a valid CAS Registry Number.

97731-03-8Downstream Products

97731-03-8Relevant articles and documents

No-carrier-added (NCA) synthesis of 6-[18F]fluoro-L-DOPA using 3,5,6,7,8,8a-hexahydro-7,7,8a-trimethyl-[6S-(6α, 8α, 8αβ)]-6,8-methano-2H-1,4-benzoxazin-2-one

Horti,Redmond Jr.,Soufer

, p. 409 - 423 (2007/10/02)

3,5,6,7,8,8a-Hexahydro-7,7,8a-trimethyl-[6S-(6α.8α.8αβ)]6,8-methano-2H-1,4 -benzoxazino-2-one (2) was investigated as chiral auxiliary for asymmetric NCA nucleophilic synthesis of 6-[18]Fluoro-L-DOPA. Direct condensation of 3,4-dimethoxy-2-[su

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