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2932-10-7

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2932-10-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2932-10-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,3 and 2 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2932-10:
(6*2)+(5*9)+(4*3)+(3*2)+(2*1)+(1*0)=77
77 % 10 = 7
So 2932-10-7 is a valid CAS Registry Number.

2932-10-7Downstream Products

2932-10-7Relevant articles and documents

Carotenoid Sulfates. 4. Syntheses and Properties of Carotenoid Sulfates

Hertzberg, Sissel,Liaaen-Jensen, Synnoeve

, p. 629 - 638 (2007/10/02)

Carotenoid sulfates have been prepared from 14 selected carotenols for spectroscopic characterization, studies of their stability in solution and their water solubility.Carotenoids containing sec non-allylic hydroxy groups provided sulfates stable in methanol solution, exemplified by zeaxanthin mono- and disulfate, alloxathin mono- and disulfate, fucoxanthin monosulfate, peridinin monosufate, capsorubin mono- and disulfate and astaxanthin mono- and disulfate.Acid catalyzed methanolysis of zeaxanthin disulfate gave zeaxanthin with complete retention of configuration.Enzymatic hydrolysis of alloxanthin monosulfate is reported.Less stable sulfates were obtained from sec vic diol type-, phenolic and tert-carotenols; caloxanthin, nostoxanthin, 3-hydroxyisorenieratene, 3,3'-dihydroxyisorenieratene, rhodovibrin, di-OH-lycopene and OH-chlorobactene.Acid catalyzed methanolysis of the tert caratenols proceeded via carbocations, judged by the solvolysis products characterized.Characteristic spectroscopic properties of carotenoid sulfates are pointed out.Water solubilities were studied.

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