1807518-77-9 Usage
Description
Fmoc-N-methyl-N-amido-PEG2-acid is a PEG linker containing an Fmoc-protected amine and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The Fmoc group can be deprotected under basic condition to obtain the free amine which can be used for further conjugations. 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.
Check Digit Verification of cas no
The CAS Registry Mumber 1807518-77-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,7,5,1 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1807518-77:
(9*1)+(8*8)+(7*0)+(6*7)+(5*5)+(4*1)+(3*8)+(2*7)+(1*7)=189
189 % 10 = 9
So 1807518-77-9 is a valid CAS Registry Number.