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H-Aib-Benzocaine*HCl is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

132682-13-4

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132682-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132682-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,6,8 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 132682-13:
(8*1)+(7*3)+(6*2)+(5*6)+(4*8)+(3*2)+(2*1)+(1*3)=114
114 % 10 = 4
So 132682-13-4 is a valid CAS Registry Number.

132682-13-4Relevant articles and documents

PyBOP and PyBroP: Two reagents for the difficult coupling of the α,α-dialkyl amino acid, Aib

Frerot, Eric,Coste, Jacques,Pantaloni, Antoine,Dufour, Marie-Noelle,Jouin, Patrick

, p. 259 - 270 (1991)

The difficult coupling of α-aminoisobutyric acid (Aib) was carried out using PyBOP and PyBroP in a comparative study with BOP and BroP. These reagents gave good results under simple conditions (one pot, r.t., 1h). Coded amino acids could be coupled with Aib using PyBOP under standard conditions of peptide synthesis without racemization whereas the coupling of two Aib residues required PyBroP/DMAP. A fragment containing an Aib C-terminal could be coupled without epimerization of the penultimate residue.

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