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68985-16-0

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68985-16-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68985-16-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,8 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 68985-16:
(7*6)+(6*8)+(5*9)+(4*8)+(3*5)+(2*1)+(1*6)=190
190 % 10 = 0
So 68985-16-0 is a valid CAS Registry Number.

68985-16-0Relevant articles and documents

TYPE II CUBIC LIQUID CRYSTAL COMPOSITION

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Page/Page column 23-24, (2010/11/28)

A cubic liquid crystal composition comprising at least one amphiphilic compound having the following general formula (1) and having an IV/OV value of 0.65 to 0.95, and water or an aqueous medium: wherein R represents a hydrophilic group; X and Y each inde

A New Method for the Stereochemical Analysis of Acyclic Terpenoid Carbonyl Compounds

Knierzinger, Andreas,Walther, Willy,Weber, Beat,Mueller, Robert Karl,Netscher, Thomas

, p. 1087 - 1107 (2007/10/02)

A new method for the determination of the enantiomeric and diastereoisomeric composition of terpenoid carbonyl compounds is presented.Separation of the diastereomeric (+)-L-diisopropyl-tartrate acetals derived from dihydrocitronellal (6), hexahydropseudoionone (3), hexahydrofarnesal (7), and hexahydrofarnesylacetone (4), the C10, C13, C15, and C18 intermediates in various syntheses of naturally occuring tocopherols and vitamin K1, can be achieved by capillary GC on a cyanopropylsilicon-coated glass column under standardized conditions.This technique, presenting a significant improvment over existing methodologies, is considered to be particularly useful for the analysis of highly enriched samples, typically obtained by present-day asymmetric synthesis.With reproducibilities of +/- 0.3 percent, and therefore, safe for routine analysis, the complete stereochemical characterization of terpenoids with 15 and 18 C-atoms bearing two stereogenic centres is performed in a single operation for the first time.

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