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159759-22-5

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159759-22-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159759-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,7,5 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 159759-22:
(8*1)+(7*5)+(6*9)+(5*7)+(4*5)+(3*9)+(2*2)+(1*2)=185
185 % 10 = 5
So 159759-22-5 is a valid CAS Registry Number.

159759-22-5Relevant academic research and scientific papers

Dispiroketals in Synthesis (Part 13): Functionalised Dispiroketals as New Chiral Auxiliaries; Highly Stereoselective Diels-Alder Reactions using a Bifunctional, C2-Symmetrical Chiral Auxiliary.

Bezuidenhoudt, Barend C. B.,Castle, Grant H.,Geden, Joanna V.,Ley, Steven V.

, p. 7451 - 7454 (1994)

Highly selective, asymmetric, Lewis acid catalysed Diels-Alder reactions are reported with a bifunctional, C2-symmetrical diacrylate derivative obtained from a chiral auxiliary based on dihydroxylated dispiroketals.

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