JenKem Technology offers Methoxy PEG Hydrazide with MW 5,000 Da (M-HZ-5000), MW 10,000 Da (M-HZ-10K), MW 20,000 Da (M-HZ-20K) and MW 30,000 Da (M-HZ-30K), in 1g and 10g packing sizes. Different MW of Methoxy PEG Hydrazide products may be available by custom synthesis, please email us at firstname.lastname@example.org for details on custom PEGs. JenKem Technology provides repackaging services for an additional fee, please contact us if you require a different package size than our catalog selection. Bulk PEGs and GMP PEGs are also available upon request. Please contact us for special bulk pricing.