Fmoc-N-amido-PEG4-acetic acid

Name: Fmoc-N-amido-PEG4-acetic acid
Brand: BOC Sciences
Rating: 5 (1 reviews)

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Category	Fmoc-NH-PEGn-CH2COOH
Catalog NO.	BPG-2219
Product Name	Fmoc-N-amido-PEG4-acetic acid
CAS	437655-95-3
Molecular Formula	C25H31NO8
Molecular Weight	473.52

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Description	Fmoc-N-amido-PEG4-acetic acid is a PEG linker intermediate with an Fmoc protecting group, used for stepwise ADC linker synthesis. The PEG4 spacer improves hydrophilicity and flexibility, aiding in controlled payload conjugation and antibody modification.
Synonyms	Fmoc-NH-PEG4-CH2COOH; 1-(9H-Fluoren-9-yl)-3-oxo-2,7,10,13,16-pentaoxa-4-azaoctadecan-18-oic acid; 5,8,11,14-Tetraoxa-2-azahexadecanedioic acid; 5,8,11,14-Tetraoxa-2-azahexadecanedioic acid, 1-(9H-fluoren-9-ylmethyl) ester; Fmoc-PEG4-acetic acid; 2,7,10,13,16-Pentaoxa-4-azaoctadecan-18-oic acid, 1-(9H-fluoren-9-yl)-3-oxo-
IUPAC Name	2-[2-[2-[2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethoxy]ethoxy]ethoxy]ethoxy]acetic acid
SMILES	C1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)NCCOCCOCCOCCOCC(=O)O
InChI	InChI=1S/C25H31NO8/c27-24(28)18-33-16-15-32-14-13-31-12-11-30-10-9-26-25(29)34-17-23-21-7-3-1-5-19(21)20-6-2-4-8-22(20)23/h1-8,23H,9-18H2,(H,26,29)(H,27,28)
InChIKey	XPNLDOFYRFOXLR-UHFFFAOYSA-N
Boiling Point	681.3±55.0°C (Predicted)
Melting Point	51°C
Purity	≥95%
Density	1.235±0.06 g/cm3 (Predicted)
Solubility	Soluble in DMSO (10 mm)
Related CAS	675606-79-8 (polymer)
Appearance	Pale Yellow or Colorless Oily Matter
Storage	Store at 2-8°C
Exact Mass	473.20496695
LogP	2.88050

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BOC Sciences supplies a unique variety of PEG derivatives and functional PEG polymers. Our products offer the most diverse collection of reactivity, ready-to-use functionality, and molecular weight options that you will not find anywhere else.