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1177315-89-7

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1177315-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1177315-89-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,7,3,1 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1177315-89:
(9*1)+(8*1)+(7*7)+(6*7)+(5*3)+(4*1)+(3*5)+(2*8)+(1*9)=167
167 % 10 = 7
So 1177315-89-7 is a valid CAS Registry Number.

1177315-89-7Downstream Products

1177315-89-7Relevant articles and documents

A new and expedient total synthesis of ochratoxin A and d 5-ochratoxin A

Gabriele, Bartolo,Attya, Mohamed,Fazio, Alessia,Di Donna, Leonardo,Plastina, Pierluigi,Sindona, Giovanni

body text, p. 1815 - 1820 (2010/02/28)

A new total synthesis of the mycotoxin ochratoxin A (OTA) is presented, in which it is prepared in 9% overall yield from commercially available substrates. The key step consists of the condensation reaction between protected L-phenylalanine and 5-chloro-8-hydroxy-3-methyl-1-oxoisochromane-7-carboxylic acid (ochratoxin α, OTα). The same strategy could be successfully applied to L-d5-phenylalanine, leading to the first total synthesis of d5-OTA, a molecular tracer for the detection and analytical quantification of the natural mycotoxin in food samples by means of stable isotope dilution assay (SIDA). Georg Thieme Verlag Stuttgart.

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