3,3'-硫代二丙酸双十八烷基酯

Description

dioctadecyl 3,3'-thiodipropionate · CAS 693-36-7 · C42H82O4S. UNII B40A12D0GL. Boiling Point: BP: 250 °C at 1 mm Hg; Melting Point: 61 °C; Density: 1.027 g/cu cm at 25 °C.

Identification

CAS Registry Number	693-36-7
PubChem CID	12738
Molecular formula	C42H82O4S
IUPAC name	octadecyl 3-(3-octadecoxy-3-oxopropyl)sulfanylpropanoate
UNII (FDA)	B40A12D0GL

Computed Descriptors

Molecular Weight	683.2
XLogP3	18.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	42
Exact Mass	682.59338227
Monoisotopic Mass	682.59338227
Topological Polar Surface Area	77.9
Heavy Atom Count	47
Formal Charge	0

Physical & Chemical Properties

Boiling Point	BP: 250 °C at 1 mm Hg
Melting Point	61 °C
Density	1.027 g/cu cm at 25 °C
Vapor Pressure	4.95X10-8 mm Hg at 20 °C

Physical description & handling notes

• CBI; Dry Powder; Other Solid; Dry Powder; Large Crystals
• White solid; [Hawley] White paste; [MSDSonline]
• White flakes
• Crystals
• Boiling Point: >300 °C; decomposes at 300 °C
• Insoluble in water

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTIOXIDANT: Food Additives WITHDRAWN Not on any of the permitted lists NMRS 38/TRS 309-JECFA 8/16 FAS 24.65/NMRS 38A-JECFA 8/5
GHS notification summary	85.9% (477 / 555)

GHS Hazard Classification

GHS notification summary	85.9% (477 / 555)
Reported hazard statements	H412 (10.8%)

Documented Uses

• CIR ingredient: Distearyl Thiodipropionate
• 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]
• Farming (Feed Additives) [Category: Industry]
• SYNERGIST /PRC: WITH PRIMARY ANTIOXIDANTS/ FOR VEGETABLE OILS
• Antioxidant, plasticizer, softening agent.
• Used as a secondary antioxidant in a variety of polymer systems including polyolefins, ABS, styrene-butadiene emulsions and certain adhesives. These antioxidants are added to help preserve the integrity of the plastics to which they are added. Common commercial products that may contain low levels of these antioxidants include household appliances such as coffee makers, food packaging trays like those found at the grocers, plastic patio furniture, and plastic covering for wire. In addition to these uses, distearyl

Synonyms

DISTEARYL THIODIPROPIONATE; Dioctadecyl 3,3'-thiodipropionate; Dioctadecyl thiodipropionate; Plastanox STDP; Antioxidant STDP; Distearyl 3,3'-thiodipropionate; Cyanox STDP; Advastab 802; DSTDP; Advastab PS 802; Sumilizer TPS; Irganox PS 802; Arbestab DSTDP; Lusmit SS; Seenox DS; Yoshinox DSTDP

Frequently Asked Questions

What are the CAS number and molecular formula of dioctadecyl 3,3'-thiodipropionate?

CAS 693-36-7; molecular formula C42H82O4S; molecular weight — g/mol.

What other names is dioctadecyl 3,3'-thiodipropionate known by?

DISTEARYL THIODIPROPIONATE, Dioctadecyl 3,3'-thiodipropionate, Dioctadecyl thiodipropionate, Plastanox STDP, Antioxidant STDP, Distearyl 3,3'-thiodipropionate.

What is the regulatory status of dioctadecyl 3,3'-thiodipropionate?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; ANTIOXIDANT: Food Additives; WITHDRAWN.

Is dioctadecyl 3,3'-thiodipropionate classified as hazardous?

85.9% of GHS notifications report no hazard classification (477 of 555).

What are the key physical properties of dioctadecyl 3,3'-thiodipropionate?

Boiling Point: BP: 250 °C at 1 mm Hg; Melting Point: 61 °C; Density: 1.027 g/cu cm at 25 °C; Vapor Pressure: 4.95X10-8 mm Hg at 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.