Amine Linear PEGs from JenKem Technology are high quality PEG reagents that attach via stable linkages, such as amide, urethane, urea, secondary amine. The HCl salt form provides stability for the solid form of M-PEG-NH2. Linear monofunctional amine PEG products with molecular weights not listed in our online catalog may be available by custom synthesis. Please inquire at firstname.lastname@example.org about pricing and availability. Bulk PEGs and GMP PEGs are also available upon request. Please contact us for special bulk pricing.