518044-41-2 Usage
Description
Mal-PEG4-acid is a PEG linker containing a maleimide group with a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. 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 518044-41-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,8,0,4 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 518044-41:
(8*5)+(7*1)+(6*8)+(5*0)+(4*4)+(3*4)+(2*4)+(1*1)=132
132 % 10 = 2
So 518044-41-2 is a valid CAS Registry Number.
518044-41-2Relevant articles and documents
CRYPTOPHYCIN-BASED ANTIBODY-DRUG CONJUGATES WITH NOVEL SELF-IMMOLATIVE LINKERS
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Page/Page column 21, (2016/10/04)
The present invention relates to antibody- or peptide-drug conjugate compounds where one or more cryptophycin derivatives (macrocyclic depsipeptide) are covalently attached by a self-immolative linker which binds to one or more tumor-associated antigens or cell-surface receptors. The linker contains a cleavage site for proteases and a dipeptide unit able to form a diketopiperazine. These compounds may be useful in methods of diagnosis or treatment of cancer, and other diseases and disorders, such as immune or infective diseases.
