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121795-05-9

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121795-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121795-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,9 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121795-05:
(8*1)+(7*2)+(6*1)+(5*7)+(4*9)+(3*5)+(2*0)+(1*5)=119
119 % 10 = 9
So 121795-05-9 is a valid CAS Registry Number.

121795-05-9Relevant articles and documents

Total synthesis and enzyme-substrate interaction of D-, DL-, and L-Phosphinotricine, 'bialaphos' (SF-1293) and its cyclic analogues

Natchev, Ivan A.

, p. 125 - 131 (2007/10/02)

DL-Phosphonotricine (3) and its cyclic analogue (4) have been synthesized using the four-component isocyanide condensation of Ugi and Ugi-analogous three-component condensation, respectively. High selectivity of the enzyme-substrate interaction was established with the enzymes α-chymotrypsin, phosphodiesterase I, and alkaline mesintericopeptidase, as well as by separation of the racemic mixture to optical antipodes by the α-chymotripsin. The tripeptide 'bialaphos' (11) and its D-antipode (11a) have been synthesized by the method of activated esters, and the cyclic analogue (15) by the DCC method. It was found that the phospholane L-(5) and the tripeptide (18) exhibit anti-tumour activity.

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