Biotin-PEG2-Mal - 98%, high purity , CAS No.305372-39-8

Item Number

B595471

Grouped product items
SKU	Size	Availability	Price
B595471-100mg	100mg	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$236.90
B595471-250mg	250mg	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$533.90
B595471-500mg	500mg	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$959.90

Biotin-PEG-Mal

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Basic Description

Synonyms	305372-39-8 \| Biotin-PEG2-Mal \| Biotin-PEG2-NH-Mal \| N-Biotinyl-N'-(3-maleimidopropionyl)-3,6-dioxaoctane-1,8-diamine \| (+)-Biotin-PEG2-NH-Mal \| Maleimide-PEG2-Biotin \| N-(2-(2-(2-(3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6a
Specifications & Purity	98%
Storage Temp	Store at -20°C
Shipped In	Ice chest + Ice pads
Product Description	Biotin-PEG2-Mal is a PEG derivative containing a biotin group and a maleimide group for labeling and crosslinking cysteines and other sulfhydryls. The maleimide group reacts specifically with sulfhydryl groups (at pH 6.5-7.5) to form a stable, irreversible thioether linkage. The hydrophilic PEG spacer increases solubility in aqueous media of the molecules conjugated to the biotin compound. It also helps to minimize steric hindrance involved with the binding to avidin molecules.

Names and Identifiers

IUPAC Name	5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]-N-[2-[2-[2-[3-(2,5-dioxopyrrol-1-yl)propanoylamino]ethoxy]ethoxy]ethyl]pentanamide
INCHI	InChI=1S/C23H35N5O7S/c29-18(4-2-1-3-17-22-16(15-36-17)26-23(33)27-22)24-8-11-34-13-14-35-12-9-25-19(30)7-10-28-20(31)5-6-21(28)32/h5-6,16-17,22H,1-4,7-15H2,(H,24,29)(H,25,30)(H2,26,27,33)/t16-,17-,22-/m0/s1
InChi Key	UDPCXVIKHFVPSZ-HOIFWPIMSA-N
Canonical SMILES	C1C2C(C(S1)CCCCC(=O)NCCOCCOCCNC(=O)CCN3C(=O)C=CC3=O)NC(=O)N2
Isomeric SMILES	C1[C@H]2[C@@H]([C@@H](S1)CCCCC(=O)NCCOCCOCCNC(=O)CCN3C(=O)C=CC3=O)NC(=O)N2
PubChem CID	11168457
Molecular Weight	525.62

Safety and Hazards(GHS)

Pictogram(s)	GHS07
Signal	Warning
Hazard Statements	H315:Causes skin irritation H319:Causes serious eye irritation
Precautionary Statements	P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of water. P321:Specific treatment (see ... on this label). P264:Wash hands [and …] thoroughly after handling. P362+P364:Take off contaminated clothing and wash it before reuse. P264+P265:Wash hands [and …] thoroughly after handling. Do not touch eyes. P337+P317:If eye irritation persists: Get medical help. P332+P317:If skin irritation occurs: Get medical help.

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Basic Description