Determine the necessary mass, volume, or concentration for preparing a solution.
≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -20°C,Argon charged Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 12 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
SPDP crosslinker, N-Succinimidyl 3-(2-pyridyldithio) propionic acid, also called N-succinimidyl 3-(2-pyridyldithio)-propionate, or OPSS-NHS, is a short-length crosslinker for amine to sulfhydryl (thiol) conjugation via its NHS-ester and pyridyldithiol reactive groups that form cleavable disulfide bonds with free thiol groups. Nanocs LC-SPDP is a long-length crossliker for amine to sulfhydryl conjugation via its NHS-ester and pyridyldithiol reactive groups that form cleavable disulfide bonds with free thiol groups.
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.
| Canonical Smiles | C1CC(=O)N(C1=O)OC(=O)CCSSC2=CC=CC=N2 |
|---|---|
| IUPAC Name | (2,5-dioxopyrrolidin-1-yl) 3-(pyridin-2-yldisulfanyl)propanoate |
| InChIKey | JWDFQMWEFLOOED-UHFFFAOYSA-N |
| 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 |
| Isomeric SMILES | C1CC(=O)N(C1=O)OC(=O)CCSSC2=CC=CC=N2 |
| PubChem CID | 100682 |
| Molecular Weight | 312.36 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Pyridines and derivatives |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Pyridines and derivatives |
| Alternative Parents | Pyrrolidine-2-ones Heteroaromatic compounds Dicarboximides Organic disulfides Lactams Carboxylic acid salts Sulfenyl compounds Monocarboxylic acids and derivatives Azacyclic compounds Organopnictogen compounds Organonitrogen compounds Organic salts Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aromatic heteromonocyclic compounds |
| Substituents | Pyridine - Pyrrolidone - 2-pyrrolidone - Dicarboximide - Pyrrolidine - Heteroaromatic compound - Carboxylic acid salt - Lactam - Organic disulfide - Azacycle - Carboxylic acid derivative - Sulfenyl compound - Monocarboxylic acid or derivatives - Organic oxide - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Carbonyl group - Organic oxygen compound - Organopnictogen compound - Organic salt - Hydrocarbon derivative - Aromatic heteromonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as pyridines and derivatives. These are compounds containing a pyridine ring, which is a six-member aromatic heterocycle which consists of one nitrogen atom and five carbon atoms. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Jun 09, 2026 | S164298 | |
| Certificate of Analysis | Jun 09, 2026 | S164298 | |
| Certificate of Analysis | Jun 09, 2026 | S164298 | |
| Certificate of Analysis | May 29, 2026 | S164298 | |
| Certificate of Analysis | Mar 20, 2026 | S164298 | |
| Certificate of Analysis | Nov 26, 2025 | S164298 | |
| Certificate of Analysis | Oct 24, 2025 | S164298 | |
| Certificate of Analysis | Jul 15, 2025 | S164298 | |
| Certificate of Analysis | Dec 31, 2024 | S164298 | |
| Certificate of Analysis | Dec 03, 2024 | S164298 | |
| Certificate of Analysis | Sep 02, 2024 | S164298 | |
| Certificate of Analysis | Oct 08, 2023 | S164298 | |
| Certificate of Analysis | Sep 13, 2022 | S164298 | |
| Certificate of Analysis | Dec 02, 2021 | S164298 |
| Solubility | acetone: 50 mg/mL;DMF: soluble |
|---|---|
| Sensitivity | heat sensitive ; light sensitive; Moisture sensitive |
| Melt Point(°C) | 84-86°C |
| Molecular Weight | 312.400 g/mol |
| XLogP3 | 0.700 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 7 |
| Exact Mass | 312.024 Da |
| Monoisotopic Mass | 312.024 Da |
| Topological Polar Surface Area | 127.000 Ų |
| Heavy Atom Count | 20 |
| Formal Charge | 0 |
| Complexity | 376.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
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