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77507-17-6

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77507-17-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77507-17-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,0 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77507-17:
(7*7)+(6*7)+(5*5)+(4*0)+(3*7)+(2*1)+(1*7)=146
146 % 10 = 6
So 77507-17-6 is a valid CAS Registry Number.

77507-17-6Downstream Products

77507-17-6Relevant articles and documents

Nuclear Magnetic Resonance Determination of Enantiomeric Composition and Absolute Configuration of Amines, Alcohols, and Thiols with α-acetic Acid as a Chiral Derivatizing Agent.

Pirkle, William H.,Simmons, Kirk A.

, p. 3239 - 3246 (2007/10/02)

(R)-acetic acid, easily prepared from commercially available (R)-2,2,2-trifluoro-1-(9-anthryl)ethanol, is a useful chiral reagent for the conversion of enantiomeric alcohols, thiols, or amines into diastereomeric derivatives.The resultant diasteremers typically have nonidentical NMR spectra, thus enabling NMR determination of the diastereomeric ratio, a ratio which reflects the original enantiomeric purity of the alcohol, thiol, or amine.A discussion of the conformational behavior of these derivatives is presented as is a conformational model for obtaining absolute configurations of the alcohol, thiol, or amine from the senses of the chemical shift differences noted between the diastereomeric derivatives.

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