3,3'-Dithiodipropionic acid di(N-hydroxysuccinimide ester)

Also known as: Dithiobis(succinimidyl propionate), DTSP, DSP, 3,3'-Dithiobis(propionic acid N-hydroxysuccinimide ester), Di(N-succinimidyl) 3,3'-dithiodipropionate, 1,1'-{Disulfanediylbis[(1-oxopropane-3,1-diyl)oxy]}dipyrrolidine-2,5-dione, 2,5-Pyrrolidinedione, 1,1'-[dithiobis[(1-oxo-3,1-propanediyl)oxy]]bis-, (2,5-dioxopyrrolidin-1-yl) 3-[[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropyl]disulfanyl]propanoate, EINECS 260-931-5, MFCD00042045

3,3'-Dithiodipropionic acid di(N-hydroxysuccinimide ester) (CAS 57757-57-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H16N2O8S2 and a molecular weight of 404.415 g/mol. Key properties include a melting point of 128-133 °C, a boiling point of 560.1±60.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 292.6±32.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

57757-57-0

Jingsj CID

J-29204-7

Molecular Formula

C₁₄H₁₆N₂O₈S₂

Molecular Weight

404.415 g/mol

Category

Organic Acids

Last updated

8/21/2026