Description: Biotin-PEG3-acid is a heterobiofunctional biotin PEG derivative containing a carboxylic acid group. The hydrophilic PEG spacer arm imparts water solubility that is transferred to the biotinylated molecule. PEG Linkers may be useful in the development of antibody drug conjugates and drug delivery methods.

Name: Biotin-PEG3-acid
CAS#: 252881-76-8
Chemical Formula: C19H33N3O7S
Exact Mass: 447.2039
Molecular Weight: 447.55
Elemental Analysis: C, 50.99; H, 7.43; N, 9.39; O, 25.02; S, 7.16

Synonym: Biotin-PEG3-acid

IUPAC/Chemical Name: 14-oxo-18-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)-4,7,10-trioxa-13-azaoctadecanoic acid

InChi Key: HRGPPBXEZFBGDJ-MPGHIAIKSA-N

InChi Code: InChI=1S/C19H33N3O7S/c23-16(4-2-1-3-15-18-14(13-30-15)21-19(26)22-18)20-6-8-28-10-12-29-11-9-27-7-5-17(24)25/h14-15,18H,1-13H2,(H,20,23)(H,24,25)(H2,21,22,26)/t14-,15-,18-/m0/s1

SMILES Code: O=C1N[C@@]2([H])CS[C@@H](CCCCC(NCCOCCOCCOCCC(O)=O)=O)[C@@]2([H])N1

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001