739-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 739-13-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,3 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 739-13:
(5*7)+(4*3)+(3*9)+(2*1)+(1*3)=79
79 % 10 = 9
So 739-13-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H28O2/c1-16(8-6-9-17(2)11-15-21)10-14-20-18(3,4)12-7-13-19(20,5)22-20/h6,8-11,14-15H,7,12-13H2,1-5H3/b9-6+,14-10+,16-8-,17-11+
739-13-9Relevant articles and documents
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Morton,Goodwin
, p. 405 (1944)
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One step and convenient preparations of 4-hydroxyretinal and 4- oxoretinal
Hashimoto, Masaru,Fujimoto, Yukari
, p. 3793 - 3797 (2007/10/03)
Treatment of all-trans-retinal with one and two equivalents of NBS in a mixture of CH3CN-CH2Cl2-H2O provide 4-hydroxyretinal and 4-oxoretinal, respectively, in good yields.
Oxidation products of retinylidene dimedone
Acton,Brossi
, p. 1391 - 1395 (2007/10/02)
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