PUN 42709

PUN 42709

Catalog	BR00028600
CAS	2055042-70-9
Structure
Description	N-(Azido-PEG4)-biocytin is a biotin PEG linker containing a carboxylic group and an azide group. Reaction of carboxylic with primary amino (-NH2) forms stable, irreversible amide bonds. The azide group can react with alkyne moiety in Cu(I)-catalyzed Click Chemistry reaction or DBCO moiety in copper-free Click Chemistry reaction to form a stable triazole linkage. The hydrophilic PEG spacer increases solubility in aqueous media of the molecules conjugated to the biotin compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Synonyms	N-(Azido-PEG4)-biocytin; PUN 42709; PUN-42709; PUN42709
IUPAC Name	N2-(1-azido-3,6,9,12-tetraoxapentadecan-15-oyl)-N6-(5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoyl)-L-lysine
Molecular Weight	645.77 g/mol
Molecular Formula	C27H47N7O9S
Canonical SMILES	O=C1N[C@@]2([H])CS[C@@H](CCCCC(NCCCC[C@H](NC(CCOCCOCCOCCOCCN=[N+]=[N-])=O)C(O)=O)=O)[C@@]2([H])N1
InChI	InChI=1S/C27H47N7O9S/c28-34-30-10-12-41-14-16-43-18-17-42-15-13-40-11-8-24(36)31-20(26(37)38)5-3-4-9-29-23(35)7-2-1-6-22-25-21(19-44-22)32-27(39)33-25/h20-22,25H,1-19H2,(H,29,35)(H,31,36)(H,37,38)(H2,32,33,39)/t20-,21-,22-,25-/m0/s1
InChI Key	PGFHEZMNHBZACD-UEOMBKFZSA-N
Purity	≥98%
Solubility	Water, DMSO, DMF
Appearance	Solid powder
Shelf Life	>3 years if stored properly
Storage	Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Drug Formulation	This drug may be formulated in DMSO
Elemental Analysis	C, 50.22; H, 7.34; N, 15.18; O, 22.30; S, 4.96
Exact Mass	645.3156
HS Tariff Code	2934.99.03.00
Shipping	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.
Stock Solution Storage	0 - 4 C for short term (days to weeks), or -20 C for long term (months).

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