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11048-74-1

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11048-74-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 11048-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,1,0,4 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 11048-74:
(7*1)+(6*1)+(5*0)+(4*4)+(3*8)+(2*7)+(1*4)=71
71 % 10 = 1
So 11048-74-1 is a valid CAS Registry Number.

11048-74-1Downstream Products

11048-74-1Relevant articles and documents

Synthesis of labile all-trans-7,8,7′,8′-bis-acetylenic carotenoids by bi-directional Horner-Wadsworth-Emmons condensation

Vaz, Belén,Fontán, Noelia,Casti?eira, Marta,álvarez, Rosana,De Lera, ángel R.

, p. 3024 - 3031 (2015/03/18)

A new stereoselective synthesis of the C40-bis-acetylenic carotenoids all-trans-(3R,3′R)-alloxanthin and all-trans-3,4,7,8,3′,4′,7′,8′-octadehydro-β,β-carotene, both compounds featuring a stereochemically labile C7-C10 enyne, based on a bi-directional Horner-Wadsworth-Emmons (HWE) reaction of a C15-phosphonate and a central C10-dialdehyde, is reported. The triene unit of the latter fragment was synthesized using the acyclic metathesis/dimerization reaction.

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