Product Name

  • Name

    Captan

  • EINECS 205-087-0
  • CAS No. 133-06-2
  • Article Data5
  • CAS DataBase
  • Density 1.63 g/cm3
  • Solubility 0.00033 g/100 mL
  • Melting Point 178 ºC
  • Formula C9H8Cl3NO2S
  • Boiling Point 314.2 ºC at 760 mmHg
  • Molecular Weight 300.593
  • Flash Point 143.8 ºC
  • Transport Information UN 3077/9099
  • Appearance solid
  • Safety 26-29-36/37/39-45-61
  • Risk Codes 23-40-41-43-50-36-20/21/22-11
  • Molecular Structure Molecular Structure of 133-06-2 (Captan)
  • Hazard Symbols ToxicT,DangerousN
  • Synonyms 1H-Isoindole-1,3(2H)-dione,3a,4,7,7a-tetrahydro- 2-[(trichloromethyl)thio]-;Orthocide 406;Kaptazor;Trimegol;Captan 90-concentrate (solid);N-[(Trichloromethyl)mercapto]-.delta.(sup 4)-tetrahydrophthalimide;Stauffer captan;Aacaptan;NCI-C00077;Le captane;Orthocide;Vondcaptan;N-Trichloromethylthio-3a,4,7,7a-tetrahydrophthalimide;Captaf 85W;Captaf;N-[(Trichloromethyl)thio]-cis-.delta.(sup 4)-cyclohexene-1, 2-dicarboximide;Kaptan;Buvisild K;Osocide;Orthocide 50;Captab;
  • PSA 62.68000
  • LogP 2.85140

Synthetic route

captan
133-06-2

captan

2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine
1746-01-6

2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine

Conditions
ConditionsYield
With oxygen at 500℃; Oxidation; pyrolysis; Formation of xenobiotics; combustion;
captan
133-06-2

captan

A

2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine
1746-01-6

2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine

B

1,2,3,4,6,7,8,9-octachlorodibenzodioxin
3268-87-9

1,2,3,4,6,7,8,9-octachlorodibenzodioxin

C

1,2,3,7,8,9-hexachlorodibenzofuran
72918-21-9

1,2,3,7,8,9-hexachlorodibenzofuran

Conditions
ConditionsYield
With oxygen at 500 - 900℃; Product distribution; Further Variations:; Temperatures; Oxidation; pyrolysis; Formation of xenobiotics; combustion;
captan
133-06-2

captan

1,2,3,4,6,7,8,9-octachlorodibenzodioxin
3268-87-9

1,2,3,4,6,7,8,9-octachlorodibenzodioxin

Conditions
ConditionsYield
With oxygen at 500℃; Oxidation; pyrolysis; Formation of xenobiotics; combustion;
captan
133-06-2

captan

1,2,3,7,8,9-hexachlorodibenzofuran
72918-21-9

1,2,3,7,8,9-hexachlorodibenzofuran

Conditions
ConditionsYield
With oxygen at 900℃; Oxidation; pyrolysis; Formation of xenobiotics; combustion;
meso-tetraphenylporphyrin iron(III) chloride
16456-81-8, 170645-84-8

meso-tetraphenylporphyrin iron(III) chloride

captan
133-06-2

captan

iron(II) tetraphenylporphyrin (1,2,3,6-tetrahydrothiophthalimido)chlorocarbene
80697-73-0

iron(II) tetraphenylporphyrin (1,2,3,6-tetrahydrothiophthalimido)chlorocarbene

Conditions
ConditionsYield
With sodium dithionite In dichloromethane; water aq. soln. of Na2S2O4 adding to a soln. of Fe(III) complex in CH2Cl2, stirring for 0.25 h under Ar, ligand soln. in CH2Cl2 adding, stirring for 2 h, aq. layer removing, organic layer washing with H2O, solvent removing by Ar bubbling; identified by elem. anal., UV, IR, mass and NMR spectra;

Captan Chemical Properties

Molecular Structure:

Molecular Formula: C9H8Cl3NO2S
Molecular Weight: 300.5893
IUPAC Name: 2-(Trichloromethylsulfanyl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione
Synonyms of Captan (CAS NO.133-06-2): 3a,4,7,7a-Tetrahydro-2-((trichloromethyl)thio)-1H-isoindole-1,3(2H)-dione ; Captan [BSI:ISO] ; N-Trichloromethylthio-4-cyclohexene-1,2-dicarboximide ;  N-Trichloromethylthiotetrahydrophthalimide ; 1H-Isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-2-((trichloromethyl)thio)- ; 4-Cyclohexene-1,2-dicarboximide, N-(trichloromethyl)thio-
CAS NO: 133-06-2
Classification Code: Agricultural Chemical ; Fungicide, bactericide, wood preservative ; Fungicides, industrial ; Growth regulator / Fertilizer ; Human Data ; Mutation data ; Pesticides ; Reproductive Effect ; Tumor data
Melting point: 178°C 
Index of Refraction: 1.636
Molar Refractivity: 66.13 cm3
Molar Volume: 184.4 cm3
Surface Tension: 61.8 dyne/cm
Density: 1.63 g/cm3
Flash Point: 143.8 °C
Enthalpy of Vaporization: 55.53 kJ/mol
Boiling Point: 314.2 °C at 760 mmHg
Vapour Pressure: 0.000474 mmHg at 25°C

Captan Uses

 Captan (CAS NO.133-06-2) is used to control diseases on a number of fruits and vegetables as well as ornamental plants. It is also improves the outward appearance of many fruits, making them brighter and healthier-looking. It is utilized by both home and agricultural growers and is often applied during apple production.

Captan Production

1.Butadiene reacts with maleic anhydride to product 1,2,3,6-tetrahydrophthalic anhydride.
2.1,2,3,6-tetrahydrophthalic anhydride reacts with the ammonia to synthesize 1,2,3,6-tetrahydro-phthalimide.
3.1,2,3,6-tetrahydro-phthalimide reacts with trichloro-methane to obtain Captan (CAS NO.133-06-2).

Captan Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
bird - domestic LDLo unreported > 100mg/kg (100mg/kg)   Pesticide Manual. Vol. 9, Pg. 119, 1991.
human LDLo oral 1071mg/kg (1071mg/kg)   "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 151, 1969.
mouse LC50 inhalation 4500mg/m3/2H (4500mg/m3)   Toxicology and Applied Pharmacology. Vol. 45, Pg. 320, 1978.
mouse LD50 intraperitoneal 30mg/kg (30mg/kg)   Zentralblatt fuer Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung 1: Originale, Reihe A: Medizinische Mikrobiologie und Parasitologie. Vol. 234, Pg. 110, 1976.
mouse LD50 oral 7gm/kg (7000mg/kg)   Toxicology and Applied Pharmacology. Vol. 45, Pg. 320, 1978.
mouse LD50 unreported 138mg/kg (138mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(10), Pg. 24, 1973.
rabbit LD50 unreported 740mg/kg (740mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(10), Pg. 24, 1973.
rat LC50 inhalation > 5700mg/m3/2H (5700mg/m3)   Toxicology and Applied Pharmacology. Vol. 45, Pg. 320, 1978.
rat LD50 oral 9gm/kg (9000mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C59, 1991.
rat LD50 skin > 5gm/kg (5000mg/kg)   Fundamental and Applied Toxicology. Vol. 7, Pg. 299, 1986.
rat LD50 unreported 2650mg/kg (2650mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(10), Pg. 24, 1973.
rat LDLo intraperitoneal 25mg/kg (25mg/kg) PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE

BEHAVIORAL: SLEEP

BEHAVIORAL: FLUID INTAKE
Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. Vol. 168, Pg. 1173, 1974.

Captan Consensus Reports

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 , 1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 30 , 1983,p. 295.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NCI Carcinogenesis Bioassay (feed); Clear Evidence: mouse NCITR*    National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCITR* NCI-CG-TR-15 ,1977. No Evidence: rat NCITR*    National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCITR* NCI-CG-TR-15 ,1977. . EPA Genetic Toxicology Program. Community Right-To-Know List. Reported in EPA TSCA Inventory.

Captan Safety Profile

Safety Information of Captan (CAS NO.133-06-2):
Hazard Codes: N ,T ,Xn ,F
Risk Statements: 23-40-41-43-50-36-20/21/22-11
R23: Toxic by inhalation. 
R40: Limited evidence of a carcinogenic effect.
R41: Risk of serious damage to the eyes. 
R43: May cause sensitization by skin contact. 
R50: Very toxic to aquatic organisms. 
R36: Irritating to eyes. 
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed. 
R11: Highly flammable.
Safety Statements: 26-29-36/37/39-45-61 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S29: Do not empty into drains. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3077/9099
RTECS: GW5075000
Poison by intraperitoneal route. Moderately toxic to humans by ingestion. Moderately toxic experimentally by ingestion and inhalation routes. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental tumorigenic and neoplastigenic data. Human mutation data reported. When heated to decomposition it emits toxic fumes of Cl, SOx, and NOx.

Captan Standards and Recommendations

OSHA PEL: TWA 5 mg/m3
ACGIH TLV: TWA 5 mg/m3 (Sensitizer); Confirmed Animal Carcinogen with Unknown Revelance to Humans

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