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73697-99-1

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73697-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73697-99-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,6,9 and 7 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 73697-99:
(7*7)+(6*3)+(5*6)+(4*9)+(3*7)+(2*9)+(1*9)=181
181 % 10 = 1
So 73697-99-1 is a valid CAS Registry Number.

73697-99-1Relevant articles and documents

Asymmetric Addition of Organometallics to Chiral Ketooxazolines. Preparation of Enantiomerically Enriched α-Hydroxy Acids

Meyers, A. I.,Slade, Joel

, p. 2785 - 2791 (2007/10/02)

Addition of Grignard and organolithium reagents to chiral α-ketooxazolines results in α-substituted α-hydroxyoxazoline derivatives which on hydrolytic removal of the chiral auxiliary groups give rise to α-substituted α-hydroxy acids in 30-87 percent enantiomeric excess (ee).Studies on the various parameters (solvents, temperature, substituents) were undertaken to reach optimum asymmetric induction.

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