Merck
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P3415

Sigma-Aldrich

3-(2-Pyridyldithio)propionic acid N-hydroxysuccinimide ester

≥95%, powder

Synonym(s):
SPDP, N-Succinimidyl 3-(2-pyridyldithio)propionate
Empirical Formula (Hill Notation):
C12H12N2O4S2
CAS Number:
Molecular Weight:
312.36
Beilstein:
1548137
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NC.07

Quality Level

assay

≥95%

form

powder

reaction suitability

reagent type: cross-linking reagent

mp

84-86 °C (lit.)

solubility

acetone: 50 mg/mL
DMF: soluble

storage temp.

−20°C

SMILES string

O=C(CCSSC1=NC=CC=C1)ON2C(CCC2=O)=O

InChI

1S/C12H12N2O4S2/c15-10-4-5-11(16)14(10)18-12(17)6-8-19-20-9-3-1-2-7-13-9/h1-3,7H,4-6,8H2

InChI key

JWDFQMWEFLOOED-UHFFFAOYSA-N

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General description

3-(2-Pyridyldithio)propionic acid N-hydroxysuccinimide ester (SPDP) is a heterobifunctional cross-linking reagent with amine and sulfhydryl reactivity. It is typically coupled initially to molecules containing primary amines by amide bonds buffered at pH 7.5 (6.5-8.5). Second coupling specific for molecules containing free sulfhydryl by thiol-disulfide exchange buffered at pH 8.0 (7.5-8.5). Alternately, this reagent may be used as a protected thiolating reagent following initial coupling and reduction of linker. It incorporates four atom linker.

Application

3-(2-Pyridyldithio)propionic acid N-hydroxysuccinimide ester (SPDP) is useful for the preparation of enzyme immunoconjugates and hapten carrier molecule conjugates.
It has been used for antibody conjugation and as a protein cross-linker.

Packaging

5 mg in glass bottle
25, 100 mg in poly bottle

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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