Dithiobis(succinimidyl Propionate)


Product #
Dithiobis(succinimidyl Propionate)
DSP; Lomant’s Reagent
CAS Number
Molecular Weight
Color & Form
White powder
Melting Point
130° C
Solubility in water
Slightly soluble

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Information about Dithiobis(succinimidyl Propionate) / CAS 57757-57-0

  • Primary amine reactive
  • Thiol Cleavable


  1. Lomant, A.J. and Fairbanks, G. (1976) J. Mol. Biol. 104, 243-261.
  2. Tavers, R.C., et al. (1982) J. Biol. Chem. 257, 10708-10714.
  3. Park, L.S., et al. (1986) J. Biol Chem. 261, 205-210.


Transportation Information
Not a dangerous good
  • Pictogram: Irritant
Signal Word
Hazardous Statements
  • H315
    Causes skin irritation.
  • H319
    Causes serious eye irritation.
  • H335
    May cause respiratory irritation.
Precautionary Phrases
  • P261
    Avoid breathing dust/fume/gas/mist/vapours/spray.
  • P271
    Use only outdoors or in a well-ventilated area.
  • P280
    Wear protective gloves/protective clothing/eye protection/face protection.
  • P302+P352+P312
    IF ON SKIN: Wash with plenty of soap and water. Call a POISON CENTER or doctor/physician if you feel unwell.
  • P304+P340+P312
    IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell.
  • P305+P351+P338
    IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Detailed Safety and Handling Information can be found on our Safety Data Sheet (SDS).