Captan

Description

1,2,3,6-tetrahydro-N-(trichloromethylthio)phthalimide · CAS 133-06-2 · C9H8Cl3NO2S. Melting Point: 352 °F (NTP, 1992); Melting Point: 172.5 °C; Melting Point: 352 °F.

Identification

CAS Registry Number	133-06-2
PubChem CID	8606
Molecular formula	C9H8Cl3NO2S
IUPAC name	2-(trichloromethylsulfanyl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione

Computed Descriptors

Molecular Weight	300.6
XLogP3	2.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	1
Exact Mass	298.934133
Monoisotopic Mass	298.934133
Topological Polar Surface Area	62.7
Heavy Atom Count	16
Formal Charge	0

Physical & Chemical Properties

Melting Point	352 °F (NTP, 1992)
Melting Point	172.5 °C
Melting Point	352 °F
Solubility	In water, 5.1 mg/L at 25 °C
Solubility	(77 °F): 0.0003%
Density	1.74 g/cu cm at 25 °C
Density	1.74
Density	1.74 @25 °C
Vapor Pressure	9X10-8 mm Hg at 25 °C
Vapor Pressure	0 mmHg (approx)

Physical description & handling notes

• Odorless, white, crystalline powder. [fungicide] [Note: Commercial product is a yellow powder with a pungent odor.]; [NIOSH]
• WHITE CRYSTALS.
• Odorless, white, crystalline powder.
• White to cream powder
• Crystals from carbon tetrachloride
• Colorless crystals

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetic ingredients (Captan) -> CIR (Cosmetic Ingredient Review)

GHS Hazard Classification

Reported hazard statements	H317, H318, H331, H351, H400, H330, H372, H410

Documented Uses

• Captan is predominantly used in agriculture as a fungicide on a wide variety of fruits, vegetables, and ornamentals on plant seeds, and also on food crop packaging boxes.
• Most uses on food crops were cancelled by the EPA in 1989 [EXTOXNET]
• PRESERVATIVE FOR COSMETICS (EG, NON-COLORING HAIR PRODUCTS).
• Fungicide; bacteriostat in soap.
• Seed treatment; fungicide in paints, plastics, leather, fabrics; fruit preservation; bacteriostat.
• Although captan has reportedly been used as a plant regulator on citrus fruit, no evidence was found that it is currently used for this purpose in the USA.

Synonyms

CAPTAN; 133-06-2; Aacaptan; Orthocide; Merpan; Vondcaptan; Amercide; Captane; Malipur; Neracid; Captaf; Captex; Kaptan; Orthocide 406; Trimegol; Vancide 89

Frequently Asked Questions

What are the CAS number and molecular formula of 1,2,3,6-tetrahydro-N-(trichloromethylthio)phthalimide?

CAS 133-06-2; molecular formula C9H8Cl3NO2S; molecular weight — g/mol.

What other names is 1,2,3,6-tetrahydro-N-(trichloromethylthio)phthalimide known by?

CAPTAN, 133-06-2, Aacaptan, Orthocide, Merpan, Vondcaptan.

What is the regulatory status of 1,2,3,6-tetrahydro-N-(trichloromethylthio)phthalimide?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Cosmetic ingredients (Captan) -> CIR (Cosmetic Ingredient Review).

Is 1,2,3,6-tetrahydro-N-(trichloromethylthio)phthalimide classified as hazardous?

Hazard statements reported: H317, H318, H331, H351, H400.

What are the key physical properties of 1,2,3,6-tetrahydro-N-(trichloromethylthio)phthalimide?

Melting Point: 352 °F (NTP, 1992); Melting Point: 172.5 °C; Melting Point: 352 °F; Solubility: In water, 5.1 mg/L at 25 °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.