1807521-04-5 Usage
Description
Methylamino-PEG2-t-butyl ester is a PEG linker containing a methylamine group and a t-butyl ester. The hydrophilic PEG spacer increases solubility in aqueous media. The methylamine group is reactive with carboxylic acids, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions.
Uses
Methylamino-PEG2-t-butyl Ester is a compound being used in studies for the preparation of maleimides as reagents for thiol conjugation.
Check Digit Verification of cas no
The CAS Registry Mumber 1807521-04-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,7,5,2 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1807521-04:
(9*1)+(8*8)+(7*0)+(6*7)+(5*5)+(4*2)+(3*1)+(2*0)+(1*4)=155
155 % 10 = 5
So 1807521-04-5 is a valid CAS Registry Number.