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5,6-dihydro-3,6-dimethyl-4-hydroxy-2H-pyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74259-32-8

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74259-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74259-32-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,5 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74259-32:
(7*7)+(6*4)+(5*2)+(4*5)+(3*9)+(2*3)+(1*2)=138
138 % 10 = 8
So 74259-32-8 is a valid CAS Registry Number.

74259-32-8Relevant academic research and scientific papers

HYDROGENATIONS OF TRIACETIC ACID LACTONE. A NEW SYNTHESIS OF THE CARPENTER BEE (Xylocopa hirsutissima) SEX PHEROMONE

Bacardit, R.,Moreno-Manas, M.

, p. 551 - 554 (2007/10/02)

Under a variety of catalytic conditions, triacetic acid lactone, I, has been hydrogenated to differently oxidized lactones (II, III and V).C-Methylation of one of them, (II) is the key step for a convenient preparation of the carpenter bee sex pheromone.

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