132388-64-8 Usage
General Description
The product number for this product was previously 04-12-1538.To obtain a certificate of analysis (CoA) of a lot that begins with the letter “A”, please select the option in the right hand menu “Request a COA for Lot#s starting with A”.
Check Digit Verification of cas no
The CAS Registry Mumber 132388-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,3,8 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132388-64:
(8*1)+(7*3)+(6*2)+(5*3)+(4*8)+(3*8)+(2*6)+(1*4)=128
128 % 10 = 8
So 132388-64-8 is a valid CAS Registry Number.
InChI:InChI=1/C44H31F5N2O5/c45-36-37(46)39(48)41(40(49)38(36)47)56-42(52)35(51-43(53)55-24-34-32-22-12-10-20-30(32)31-21-11-13-23-33(31)34)25-54-26-50-44(27-14-4-1-5-15-27,28-16-6-2-7-17-28)29-18-8-3-9-19-29/h1-23,26,34-35H,24-25H2,(H,51,53)/t35-/m0/s1
132388-64-8Relevant articles and documents
Protection of carboxamide functions by the trityl residue. Application to peptide synthesis
Sieber,Riniker
, p. 739 - 742 (2007/10/02)
Carboxamide functions may be tritylated by an acid-catalyzed reaction with triphenylmethanol and acetic anhydride in glacial acetic acid. The ω-trityl group of asparagine and glutamine is cleavable by TFA, but stable to strong mineral acids in aqueous solution, as well as to nucleophiles and bases. In peptide syntheses, it is ideally suited for combination with side-chain protections of the t.butyl-type.
