Specifications
- Purity
- ≥97% (NMR)
- Appearance
- White to off-white powder
- Identity
- 1H-NMR
Properties
- Solvents
- acetone (50mg/ml), DMF or methanol
- Melting Point
- 84-86 °C (lit.)
Documentation
- Safety Data Sheet (SDS)
- CDX S0019 MSDS.pdf
Category: Linker
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
N-Succinimidyl 3-(2-pyridyldithio)propionate 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. N-Succinimidyl 3-(2-pyridyldithio)propionate (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. It is also a glutathione cleavable ADC linker used for the antibody-drug conjugates (ADCs).
| Synonyms | 3-(2-Pyridyldithio)propionic acid N-hydroxysuccinimide ester, SPDP |
|---|---|
| Purity | ≥97% (NMR) |
| Appearance | White to off-white powder |
| CAS-Number | 68181-17-9 |
| Molecular Formula | C12H12N2O4S2 |
| Molecular Weight | 312.36 |
| Identity | 1H-NMR |
| Solvents | acetone (50mg/ml), DMF or methanol |
| Melting Point | 84-86 °C (lit.) |
| Smiles | O=C(CCSSC1=NC=CC=C1)ON2C(CCC2=O)=O |
| InChi Key | JWDFQMWEFLOOED-UHFFFAOYSA-N |
| Shipping | AMBIENT |
| Short Term Storage | +4°C |
| Long Term Storage | -20°C |
| Handling Advice | Protect from light and moisture. |
| Use / Stability | Stable for at least 2 years after receipt when stored at -20°C. |
| Transportation | Not dangerous goods |
| References | (1) J. Carlsson, et al., Biochem. J. 173, 723 (1978), (2) D. Pain & A. Surolia, J. Immunol. Methods 40, 219 (1981), (3) P. Nilsson, et al., J. Immunol. Methods 41, 81 (1981), (4) A.F. Habeeb, Biochim. Biophys. Acta 673, 527 (1981), (5) Y.H. Jou, et al., Immunol. Commun. 11, 357 (1982), (6) Y.H. Jou, et al., Methods Enzymol. 92, 257 (1983) |
| InChi | 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 |
| Quantity | 25 mg, 100 mg, Bulk |

3-Acetyl-7-hydroxycoumarin