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Sigma-Aldrich

Sulfo-LC-SPDP (sulfosuccinimidyl 6-[3′-(2-pyridyldithio)propionamido]hexanoate)

Synonym(s):

2,5-Dioxo-3-sulfo-1-pyrrolidinyl 6-[[1-oxo-3-(2-pyridinyldithio)propyl]amino]hexanoate, Sulfo-LC SPDP, Sulfosuccinimidyl 6-(3′-(2-pyridyldithio)propionamido)hexanoate

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About This Item

Empirical Formula (Hill Notation):
C14H16N3NaO8S3
Molecular Weight:
473.48
MDL number:
MFCD00083162
UNSPSC Code:
12161502
PubChem Substance ID:
329768795
NACRES:
NA.22

Assay

≥90%

Quality Level

100

form

powder

mol wt

527.57

reaction suitability

reagent type: cross-linking reagent

storage condition

desiccated

solubility

soluble (>95 mg/ml in water)

shipped in

ambient

storage temp.

−20°C

SMILES string

O=C1CC(S(=O)([O-])=O)C(N1OC(CCCCCNC(CCSSC2=CC=CC=N2)=O)=O)=O.[Na+]

InChI

1S/C18H23N3O8S3.Na/c22-14(8-11-30-31-15-6-3-5-10-20-15)19-9-4-1-2-7-17(24)29-21-16(23)12-13(18(21)25)32(26,27)28;/h3,5-6,10,13H,1-2,4,7-9,11-12H2,(H,19,22)(H,26,27,28);/q;+1/p-1

InChI key

ZAPNXDUFCQIHFS-UHFFFAOYSA-M

Related Categories

General description

The SPDP reagents are a unique group of amine- and sulfhydryl-reactive heterobifunctional crosslinkers. Whether they are used to form amine-to-amine or amine-to-sulfhydryl crosslinks among molecules, the SPDP reagents produce disulfide-containing linkages that can be cleaved later with reducing agents such as dithiothreitol (DTT).

Features and Benefits

  • Reactive groups: NHS ester and pyridyldithiol
  • Reactive towards: amino and sulfhydryl groups
  • Releases a detectable by-product when reacted with a free sulfhydryl group; by measuring the release of pyridine-2-thione at 343 nm, the reaction can be easily followed
  • Water soluble, 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 is also easily cleaved using reducing SDS-PAGE sample loading buffer
  • Cleavable crosslinker allows separation of crosslinked products
  • Sulfo-LC-SPDP crosslinker is not membrane permeable, allowing cell surface labeling
  • Compare to other varieties of SPDP-type reagents, including pegylated forms

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.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Preparation of antibody-toxin conjugates.
A J Cumber et al.
Methods in enzymology, 112, 207-225 (1985-01-01)
Neurath, A. R. and Strick, N.
J. Virol. Methods, 3, 155-165 (1981)
J Carlsson et al.
The Biochemical journal, 173(3), 723-737 (1978-09-01)
A heterobifunctional reagent, N-succinimidyl 3-(2-pyridyldithio)propionate, was synthesized. Its N-hydroxysuccinimide ester group reacts with amino groups and the 2-pyridyl disulphide structure reacts with aliphatic thiols. A new thiolation procedure for proteins is based on this reagent. The procedure involves two steps.

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