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128217-58-3

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128217-58-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128217-58-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,1 and 7 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128217-58:
(8*1)+(7*2)+(6*8)+(5*2)+(4*1)+(3*7)+(2*5)+(1*8)=123
123 % 10 = 3
So 128217-58-3 is a valid CAS Registry Number.

128217-58-3Relevant articles and documents

Asymetric Diels-Alder Reactions with γ-Functionalized α,β-Unsaturated Chiral N-Acyloxazolidinones: Synthesis of (+)-S-145

Martinelli, Michael J.

, p. 5065 - 5073 (2007/10/02)

An extension of the asymmetric Diels-Alder cycloaddition with chiral γ-substituted, α,β-unsaturated imides is described.The application of these results to the synthesis of the potent TxA2 receptor antagonist (+)-S-145 was successfully achieved in a practical manner.

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