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95307-42-9

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95307-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 95307-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,3,0 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 95307-42:
(7*9)+(6*5)+(5*3)+(4*0)+(3*7)+(2*4)+(1*2)=139
139 % 10 = 9
So 95307-42-9 is a valid CAS Registry Number.

95307-42-9Relevant articles and documents

Total synthesis of acetylenic carotenoids. 3. First total synthesis of optically active 9-Z-(3R,3'R)-diatoxanthin and 9-Z-(3R)-7,8-didehydrocryptoxanthin.

Haugan, Jarle Andre,Liaaen-Jensen, Synnoeve

, p. 1781 - 1792 (2007/10/02)

Optically active 9-Z-(3R,3'R)-diatoxanthin and 9-Z-(3R)-7,8-didehydrocryptoxanthin were synthesised in an overall yield of 9percent and 11percent respectively, with a seven step C9+C6+C25=C40 strategy.A key intermediate was the previously undescribed C15-

Carotenoids and Related Compounds. Part 38. Synthesis of (3RS,3'RS)-Alloxanthin and Other Acetylenes

Davies, Anthony J.,Khare, Anakshi,Mallams, Alan K.,Massy-Westropp, Ralph A.,Moss, Gerard P.,Weedon, Basil C. L.

, p. 2147 - 2158 (2007/10/02)

The all-trans, 9-cis, and 9,9'-di-cis forms of (3RS,3'RS)-alloxanthin have been synthesized, also the 9-cis-isomer of (3RS,6'RS)-crocoxanthin.Perhydrogenation of alloxanthin gives a product with the same optical properties as perhydrozeaxanthin.These resu

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