1895916-27-4 Usage
Description
Acid-PEG9-NHS ester is a PEG linker containing a carboxylic acid and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
Check Digit Verification of cas no
The CAS Registry Mumber 1895916-27-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,9,5,9,1 and 6 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1895916-27:
(9*1)+(8*8)+(7*9)+(6*5)+(5*9)+(4*1)+(3*6)+(2*2)+(1*7)=244
244 % 10 = 4
So 1895916-27-4 is a valid CAS Registry Number.