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1026454-37-4

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1026454-37-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1026454-37-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,4,5 and 4 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1026454-37:
(9*1)+(8*0)+(7*2)+(6*6)+(5*4)+(4*5)+(3*4)+(2*3)+(1*7)=124
124 % 10 = 4
So 1026454-37-4 is a valid CAS Registry Number.

1026454-37-4Relevant articles and documents

An improved approach to chiral cyclopentenone building blocks. Total synthesis of pentenomycin I and neplanocin A

Gallos, John K.,Stathakis, Christos I.,Kotoulas, Stefanos S.,Koumbis, Alexandros E.

, p. 6884 - 6890 (2005)

An improved approach to enantiomerically pure hydroxylated cyclopentenones is reported here, which involves intramolecular nitrone cycloaddition of sugar-derived chiral pent-4-enals and hex-5-en-ones-2 followed by N-O bond cleavage, quaternization of the amine thus produced, and finally oxidative elimination of the amino group. Synthesis of pentenomycin I and neplanocin A is described following this methodology.

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