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82667-45-6

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82667-45-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82667-45-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,6,6 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 82667-45:
(7*8)+(6*2)+(5*6)+(4*6)+(3*7)+(2*4)+(1*5)=156
156 % 10 = 6
So 82667-45-6 is a valid CAS Registry Number.

82667-45-6Relevant articles and documents

The first total synthesis of naturally occurring (+)-gymnasterkoreayne F and its enantiomer

Carpita, Adriano,Braconi, Silvia,Rossi, Renzo

, p. 2501 - 2508 (2005)

The first total synthesis of naturally occurring (+)-gymnasterkoreayne F and its enantiomer is reported. The seven-step route to these two polyacetylenes in enantiomerically pure form involves the use of (+)-2,3-O-isopropylidene-l- threitol and (-)-2,3-O-isopropylidene-d-threitol, respectively, as the starting material and a Cadiot-Chodkiewicz reaction as a key step. The absolute configuration of (+)-gymnasterkoreayne F has been confirmed to be (2E,8S,Z). The natural product and its enantiomer have been found to exhibit modest cytotoxicity against the 60 human tumor cell lines of the National Cancer Institute.

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