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Fungicides

Thiram

Also known as Tetramethylthiuram disulfide, Thiuram, TMTD

CAS 137-26-8Formula C6H12N2S4Molar mass 240.44 g/molEC 205-286-2
GHS signal word: Warning. Pictograms: Harmful or irritant, Serious health hazard, Hazardous to the environment 116 suppliers listed
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Thiram chemical structure, C6H12N2S4, CAS 137-26-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White crystalline powder
Melting point
155 to 156
Boiling point
129 °C
Density
1.3 g/cm³
Flash point
89 °C
HS code
293020
Category
Fungicides
UN number
UN 2771
Illustrative photo, off-white crystalline powder with an amber glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Thiram?

Plain description, key identifiers and synonyms

Thiram is an organic disulfide that results from the formal oxidative dimerisation of N,N-dimethyldithiocarbamic acid. It is widely used as a fungicidal seed treatment. It has a role as an antibacterial drug, an antiseptic drug and an antifungal agrochemical. It contains a dimethyldithiocarbamate. It is functionally related to a dimethyldithiocarbamic acid.

Thiram is a moderately toxic organosulfur compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dimethylcarbamothioylsulfanyl N,N-dimethylcarbamodithioate
CAS number
137-26-8 CAS number cross-checked
EC number
205-286-2
Molecular formula
C6H12N2S4
UNII
0D771IS0FH
MDL number
MFCD00008325
INCI name
THIRAM
InChIKey
KUAZQDVKQLNFPE-UHFFFAOYSA-N
InChI
InChI=1S/C6H12N2S4/c1-7(2)5(9)11-12-6(10)8(3)4/h1-4H3
SMILES (canonical and isomeric)
CN(C)C(=S)SSC(=S)N(C)C

Synonyms

  • Tetramethylthiuram disulfide
  • Thiuram
  • TMTD
  • Rezifilm
  • Pomarsol
  • Thirame
  • Arasan
  • Fernasan
  • Nobecutan
  • Normersan
  • Aapirol
  • Puralin
  • Spotrete
  • Thiosan
  • Thirasan
  • Tetrathiuram disulfide
  • Tetramethylthiuram
  • Falitiram
  • Formalsol
  • Hexathir
  • Kregasan
  • Mercuram
  • Sadoplon
  • Tetrasipton
  • Thillate
Show all 39 synonyms
  • Thiramad
  • Aatiram
  • Atiram
  • Fermide
  • Fernide
  • Hermal
  • Pomasol
  • Thiulin
  • Thiulix
  • Anles
  • Heryl
  • Pomarsol forte
  • Methyl tuads
  • Accelerator T

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
White crystalline powderexp.
Odour
Characteristic odorexp.
Melting point
155 to 156exp.
Boiling point
129 °Cexp.
Density
1.3 g/cm³exp.
Flash point
89 °Cexp.
Solubility
In water, 30 mg/L at 25 °Cexp.
Vapour pressure
1.72 × 10⁻⁵ mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
240.44 g/molcalc.
Exact mass
239.9883 Dacalc.
LogP (octanol/water)
2.06calc.
Topological polar surface area
6.48 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
0calc.
Heavy atoms
12calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.67calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (23)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2771
Transport hazard class
9
Packing group
III

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Thiram suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 116 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

116 suppliers in 20 countries

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Thiram price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Fungicide for large brown patch snowmold and dollar spot on fine turfs.

Wood preservative, mushroom disinfectant.

Primary & secondary accelerators in compounding natural, isobutylene-isoprene, butadiene, styrene-butadiene, synthetic isoprene & nitrile-butadiene rubbers.

Industrial uses: Processing aids not otherwise specified, Polymerization promoter, Other.

Consumer uses: Polymerization promoter, Processing aids not otherwise specified.

Use classes: Fungicides, Transformation products, Pesticide transformation products.

Cosmetic ingredient, INCI name THIRAM(antimicrobial)

Pharmacological actions

  • Fungicides, Industrial
  • Mutagens

Roles

  • agrochemical
  • antibacterial agent
  • antibacterial drug
  • antifungal agent
  • antifungal agrochemical
  • antiinfective agent
  • antimicrobial agent
  • antimicrobial drug
  • antiparasitic agent
  • antiseptic drug
  • fungicide
  • pesticide
  • pharmaceutical

Functional uses

  • Biocide
  • Catalyst
  • Chemical reaction regulator
  • Dispersing agent
  • Processing aids not otherwise specified

Cosmetic functions

  • Antimicrobial

Pharmacology

Thiram is a Standardized Chemical Allergen. The physiologic effect of thiram is by means of Increased Histamine Release and Cell-mediated Immunity.

How it is made

Thiram is produced by careful oxidation of a N,N-dimethyl dithiocarbamate salt with hydrogen peroxide, chlorine, or air.

First prepared by oxidation of dimethylamine salt of dimethyldithiocarbamic acid with iodine in ethanolic solution. ... In USA by passing chlorine gas through solution of sodium dimethyldithiocarbamate. In Canada ... from iron oxide, hydrogen peroxide, sodium hydroxide, dimethylamine, and carbon disulfide.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 006-005-00-4

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Thiram is traded under.

HS 2930.20Indicative HS code

Thiocarbamates and dithiocarbamates

World exports in 2024
$377M
−5.5% vs 2023, imports $372M
2019 to 2024
Top exporters
  1. China49.2%
  2. Germany11.2%
  3. Japan9.7%
Top importers
  1. India * partner reported12.2%
  2. Australia12.1%
  3. United States7.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Thiram is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Thiram, based on the data on this page

What is Thiram?

Thiram is an organic disulfide that results from the formal oxidative dimerisation of N,N-dimethyldithiocarbamic acid. It is widely used as a fungicidal seed treatment. It has a role as an antibacterial drug, an antiseptic drug and an antifungal agrochemical. It contains a dimethyldithiocarbamate.

What is the CAS number of Thiram?

The CAS registry number of Thiram is 137-26-8.

What is the molecular formula and weight of Thiram?

The molecular formula of Thiram is C6H12N2S4 and its molar mass is 240.44 g/mol.

What is Thiram used for?

Fungicide for large brown patch snowmold and dollar spot on fine turfs. Wood preservative, mushroom disinfectant. Primary & secondary accelerators in compounding natural, isobutylene-isoprene, butadiene, styrene-butadiene, synthetic isoprene & nitrile-butadiene rubbers.

Is Thiram hazardous?

Thiram carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, may cause an allergic skin reaction. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Thiram?

Thiram is usually classified under HS code 293020 (Thiocarbamates and dithiocarbamates). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Thiram?

CompoundList lists 116 suppliers of Thiram in China, United States, India, Germany and 16 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Thiram in India?

7 suppliers in India list Thiram on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Thiram?

Suppliers quote Thiram on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Thiram

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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