DTSSP (3,3′-dithiobis(sulfosuccinimidyl propionate))

ALDRICH/803200

Synonym: DTSSP; bis(sulfosuccinimidyl) 3,3′-dithiobis(propionate)

CAS Number: 81069-02-5
Empirical Formula (Hill Notation): C₁₄H₁₄N₂O₁₄S₄Na₂
Molecular Weight: 608.51
MDL Number: MFCD00054980
Linear Formula: C₁₄H₁₄N₂O₁₄S₄Na₂
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-803200-50MG	50 mg	$228.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

assay	≥80%
form	powder
InChI	1S/C14H16N2O14S4.2Na/c17-9-5-7(33(23,24)25)13(21)15(9)29-11(19)1-3-31-32-4-2-12(20)30-16-10(18)6-8(14(16)22)34(26,27)28;;/h7-8H,1-6H2,(H,23,24,25)(H,26,27,28);;/q;2*+1/p-2
InChI key	XRWWBWZHHSXBNC-UHFFFAOYSA-L
mol wt	608.51
Quality Level	100
reaction suitability	reagent type: cross-linking reagent
shipped in	ambient
SMILES string	O=C(CC1S(=O)([O-])=O)N(OC(CCSSCCC(ON2C(CC(S(=O)([O-])=O)C2=O)=O)=O)=O)C1=O.[Na+].[Na+]
solubility	soluble (>6mg/ml in water)
storage condition	desiccated
storage temp.	2-8°C

Application:	• Enhancing Ocular Antisense Oligonucleotide Delivery: Utilizing Cowpea Chlorotic Mottle Virus-like particles, this study incorporates DTSSP for the enhancement of antisense oligonucleotide delivery targeting posterior segment ocular diseases, demonstrating a novel approach in biocompatible drug delivery systems (Pretto et al., 2021 ). • Regulation of Integrin-Tetraspanin Interactions: DTSSP is utilized to stabilize interactions between integrins and the tetraspanin CD9, providing critical insights into cell adhesion and signaling mechanisms, relevant to cancer and other pathologies (Torres-Gómez et al., 2021 ). • Gene Delivery Platform Development: A study on adeno-associated viral vectors employs DTSSP for cross-linking to tune cellular tropisms and enhance gene delivery, showing potential for targeted gene therapy applications (Yoo et al., 2020 ). • Protein Interactor Identification: DTSSP is instrumental in identifying interactors of the Arabidopsis thaliana Plant Natriuretic Peptide (AtPNP-A) using mass spectrometry, aiding in the understanding of plant signaling pathways (Turek et al., 2020 ). • Protein Delivery via Nanoparticles: Research on poly(l-lysine)-grafted-poly(ethylene glycol) nanoparticles highlights the use of DTSSP for redox-responsive crosslinking, improving the delivery mechanisms for therapeutic proteins (Seaberg et al., 2020 ).
Caution:	This product is sensitive to moisture. The vial is packaged in a resealable bag with a desiccant to reduce exposure to moisture. After cold storage, equilibrate the vial to room temperature before opening to reduce condensation inside the vial. Make fresh solutions. Storage of stock solutions is not recommended. After use, return the vial to the resealable bag. Close the bag and store the product at the recommended temperature.
Features and Benefits:	• Reactive groups: sulfo-NHS ester (both ends) • Reactive towards: amino groups (primary amines) • Sulfo-NHS ester reacts rapidly with any primary amine-containing molecule • Disulfide bond in the spacer arm is readily cleaved by 10-50 mM DTT or TCEP at pH 8.5 • Spacer arm also easily cleaved with reducing SDS-PAGE sample loading • Cleavable crosslinker allows separation of crosslinked products • Water-soluble; compare with DSP • Membrane-impermeable, allowing for cell surface labeling
General description:	DTSSP is 3,3′-Dithiobis(sulfosuccinimidylpropionate), which contains an amine-reactive N-hydroxysulfosuccinimide (sulfo-NHS) ester at each end of an 8-carbon spacer arm. Sulfo-NHS esters react with primary amines at pH 7-9 to form stable amide bonds, along with release of the N-hydroxysulfosuccinimide leaving group. Proteins, including antibodies, generally have several primary amines in the side chain of lysine (K) residues and the N-terminus of each polypeptide that are available as targets for sulfo-NHS-ester crosslinking reagents. DSS, the non-sulfonated analog of DTSSP is also available for applications that require a membrane-permeable crosslinker.

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥80%
Storage Temp.	2-8°C
UNSPSC	12352108

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