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1262552-77-1

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1262552-77-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1262552-77-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,2,5,5 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1262552-77:
(9*1)+(8*2)+(7*6)+(6*2)+(5*5)+(4*5)+(3*2)+(2*7)+(1*7)=151
151 % 10 = 1
So 1262552-77-1 is a valid CAS Registry Number.

1262552-77-1Downstream Products

1262552-77-1Relevant articles and documents

Pheromone synthesis. Part 245: Synthesis and chromatographic analysis of the four stereoisomers of 4,8-dimethyldecanal, the male aggregation pheromone of the red flour beetle, Tribolium castaneum

Akasaka, Kazuaki,Tamogami, Shigeyuki,Beeman, Richard W.,Mori, Kenji

experimental part, p. 201 - 209 (2011/02/27)

All four stereoisomers of 4,8-dimethyldecanal (1) were synthesized from the enantiomers of 2-methyl-1-butanol and citronellal. Enantioselective GC analysis enabled separation of (4R,8R)-1 and (4R,8S)-1 from a mixture of (4S,8R)-1 and (4S,8S)-1, when octakis-(2,3-di-O-methoxymethyl-6-O-tert-butyldimethylsilyl)- γ-cyclodextrin was employed as a chiral stationary phase. Complete separation of the four stereoisomers of 1 on reversed-phase HPLC at -54 °C was achieved after oxidation of 1 to the corresponding carboxylic acid 12 followed by its derivatization with (1R,2R)-2-(2,3-anthracenedicarboximido) cyclohexanol, and the natural 1 was found to be a mixture of all the four stereoisomers.

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