Agent Name

Distearyl thiodipropionate

CAS Number




Major Category

Plastics & Rubber


3,3'-Thiobispropanoic acid, dioctadecyl ester; Advastab 802; Advastab PS 802; Antage STDP-N; Antiok S; Antioxidant STDP; Arbestab DSTDP; Cyanox STDP; Cyanox-STDP; DSTDP; DSTP; Dioctadecyl 3,3'-thiobispropanoate; Dioctadecyl 3,3'-thiodipropionate; Dioctadecyl thiodipropionate; Distearyl 3,3'-thiodipropionate; Distearyl beta,beta'-thiodipropionate; Distearyl beta-thiodipropionate; Distearyl thiodipropionic acid; Distearyl thiopropionate; Evanstab 18; Hostanox SE 2; Hostanox SE 4; Hostanox VP-SE 2; Irganox PS 802; Lusmit SS; Naugard DSTDP; PS 802; Plastanox STDP; Plastanox STDP Antioxidant; Propanoic acid, 3,3'-thiobis-, dioctadecyl ester; Propionic acid, 3,3'-thiodi-, dioctadecyl ester; Seenox DS; Sumilizer TPS; Thio 1; Thiodipropionic acid, distearyl ester; Varox DSTDP; Yoshinox DSTDP; [ChemIDplus]


Other Plasticizers


White solid; [Hawley] White paste; [MSDSonline]


Used as antioxidant for polypropylene, polyethylene, thermoplastics, rubbers, fats, and vegetable oils; Also used as a plasticizer and as a preservative in animal feed; [HSDB]


Oral LD50 (rat) >2500 mg/kg; [ChemIDplus] It is toxic to rats if added to food at 3% for 24 months--retards animal growth; [HSDB] No effects observed in a 2-year feeding study of rats at doses up to 1125 mg/kg-bw/day, the highest dose tested; Not irritating to rabbit skin or eye; Not mutagenic in in vitro tests; [Reference #1]

Reference Link

EPA Hazard Characterization Document: Thiobis Propanoic Acid Derivatives - 2010

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Related Information in HazMap

Industrial Processes with risk of exposure: