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139225-06-2

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139225-06-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139225-06-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,2 and 5 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139225-06:
(8*1)+(7*3)+(6*9)+(5*2)+(4*2)+(3*5)+(2*0)+(1*6)=122
122 % 10 = 2
So 139225-06-2 is a valid CAS Registry Number.

139225-06-2Relevant articles and documents

α-Phenylglycinol as chiral auxiliary in diastereoselective Strecker synthesis of α-amino acids

Chakraborty,Azhar Hussain,Venkat Reddy

, p. 9179 - 9190 (2007/10/02)

The high diastereoselectivity achieved in Strecker synthesis using inexpensive α-phenylglycinol as chiral auxiliary and its facile removal by oxidative clearange make it an ideal choice for the large scale preparations of optically active α-amino acids specially α-arylglycines present abundantly in glycopeptide antibiotics. A number of chiral amino acids are synthesized following this method. Also molecular mechanics calculations are carried out to explain the observed diastereoselection.

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