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81749-12-4

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81749-12-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81749-12-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,4 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81749-12:
(7*8)+(6*1)+(5*7)+(4*4)+(3*9)+(2*1)+(1*2)=144
144 % 10 = 4
So 81749-12-4 is a valid CAS Registry Number.

81749-12-4Downstream Products

81749-12-4Relevant articles and documents

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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