Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

Thiabendazole

Thiabendazole is colorless crystals and is odorless.

CAS 148-79-8 C10H7N3S 201.25 g/mol Warning

01 · Identification

What Thiabendazole is

Thiabendazole is colorless crystals and is odorless. Its molecular formula is C10H7N3S and its molecular weight is 201.25 g/mol. It melts at 305 °C, is slightly soluble in water.

Under the GHS it carries the signal word Warning.

02 · Identifiers

Thiabendazole identifiers and molecular data

Thiabendazole CAS number and EC number

CAS number148-79-8
EC number205-725-8
Index number (CLP Annex VI)613-054-00-0

Thiabendazole molecular formula and molecular weight

Molecular formulaC10H7N3S
Molecular weight201.25 g/mol

Other names for Thiabendazole

  • thiabendazole (ISO)
  • 2-(thiazol-4-yl)benzimidazole

03 · GHS classification

Thiabendazole hazard classification

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Thiabendazole pictograms and signal word

Signal wordWarning

Thiabendazole hazard class and category

GHS hazard classes Thiabendazole falls into
Hazard class Category From code Pictogram
Hazardous to the aquatic environment - acute GHS chapter 4.1 Category 1 H400 GHS09
Hazardous to the aquatic environment - chronic GHS chapter 4.1 Category 1 H410 GHS09

Thiabendazole hazard statements (H-codes)

Hazard statements assigned to Thiabendazole
CodeHazard statement
H400 Very toxic to aquatic life.
H410 Very toxic to aquatic life with long lasting effects.

This page lists only the codes assigned to Thiabendazole. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.

Safety Data Sheet

Getting an SDS for Thiabendazole

A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Thiabendazole issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.

04 · Precautionary statements

Thiabendazole precautionary statements

CLP Annex VI assigns 3 precautionary statements to Thiabendazole. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.

Prevention

What to do before and during handling so the hazard never happens.

Response

What to do once exposure, spillage or fire has already happened.

Disposal

What has to happen to the contents and the empty container.

Reading the notation. is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.

05 · Names in the regulation

Thiabendazole name in 23 EU languages

CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.

Language Name in CLP Annex VI Part 3
Bulgarian български тиабендазол (ISO) 2-(тиазол-4-ил)бензимидазол
Spanish español Tiabendazol (ISO) 2-(tiazol-4-il)-benzimidazol
Czech čeština thiabendazol (ISO) 2-(thiazol-4-yl)benzimidazol
Danish dansk thiabendazol (ISO) 2-(thiazol-4-yl)benzimidazol
German Deutsch Thiabendazol (ISO) 2-(Thiazol-4-yl)benzimidazol
Estonian eesti tiabendasool (ISO) 2-(tiasool-4-üül)bensimidasool
Greek ελληνικά thiabendazole (θειαβενδαζόλη) (ISO) 2-(θειαζολ-4-υλο)βενζιμιδαζόλη
English English thiabendazole (ISO) 2-(thiazol-4-yl)benzimidazole
French français thiabendazole (ISO) 2-thiazol-4-yl-1H-benzoimidazole
Croatian hrvatski tiabendazol (ISO) 2-(tiazol-4-il)benzimidazol
Italian italiano tiabendazolo (ISO) 2-(tiazol-4-il)benzimidazolo
Latvian latviešu tiabendazols (ISO) 2-(tiazol-4-il)benzimidazols
Lithuanian lietuvių tiabendazolas (ISO) 2-(tiazol-4-il)benzimidazolas
Hungarian magyar tiabendazol (ISO) 2-(tiazol-4-il)benzimidazol
Maltese Malti tjabendażol (ISO) 2-(tijażol-4-il)benżimidażol
Dutch Nederlands thiabendazool (ISO) 2-(thiazool-4-yl)benzimidazool
Polish polski tiabendazol (ISO) 2-(tiazol-4-ilo)benzimidazol
Portuguese português tiabendazole (ISO) 2-(tiazol-4-il)benzimidazole
Romanian română tiabendazol (ISO) 2-(tiazol-4-il)benzimidazol
Slovak slovenčina tiabendazol (ISO) 2-(tiazol-4-yl)benzimidazol
Slovenian slovenščina tiabendazol (ISO) 2-(tiazol-4-il)benzimidazol
Finnish suomi Tiabendatsoli (ISO) 2-(tiatsol-4-yyli)bentsimidatsoli
Swedish svenska tiabendazol (ISO) 2-(tiazol-4-yl)bensimidazol

All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.

06 · Label elements

Thiabendazole GHS label elements

Everything CLP Annex VI fixes for Thiabendazole, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS09 Environment pictogram

Warning

Thiabendazole

  • Very toxic to aquatic life.
  • Very toxic to aquatic life with long lasting effects.
  • Avoid release to the environment.
  • Collect spillage.
  • Dispose of contents/container to

Supplier name, address and telephone number· Product identifier·Nominal quantity

Need this as an actual label? Open Thiabendazole in the GHS label constructor →

07 · Health hazards

Thiabendazole health hazards and exposure limits

Thiabendazole hazard summary

Allergic contact dermatitis (ACD) reported in feed mill workers; [Kanerva, p. 1839] Ingestion of high doses can cause hepatic injury. [Zimmerman, p. 412] Reports of liver injury, CNS effects, and hypersensitivity reactions (rashes, conjunctivitis, erythema multiforme, Stevens-Johnson syndrome, and angioedema) in patients; Report of ACD in banana plantation employees; [HSDB] The hypophosphite salt (CAS# 28558-32-9) is used in the non-food applications; Not irritating to skin or eyes and not a skin sensitizer; May interfere with thyroid-pituitary homeostasis; Likely to be carcinogenic at doses high enough to cause disturbance of the thyroid hormone balance. It is not likely to be carcinogenic at doses lower than those which could cause a disturbance of this hormonal balance. [EPA REDs]

Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

Thiabendazole carcinogenicity classification

Cancer Classification: Likely to be Carcinogenic to Humans at High Doses; Not Likely to be Carcinogenic to Humans at Low Doses

Source: Hazardous Substances Data Bank (HSDB)

An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.

08 · Physical and chemical properties

Thiabendazole properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Thiabendazole melting point

Property Value Conditions Source
Melting point 304.5 °C (580.1 °F) range, midpoint shown HSDB
304.44 °C (580 °F) range, midpoint shown CAMEO
300 °C (572 °F) HMDB

Thiabendazole density

Property Value Conditions Source
Density 1.103 g/cm³ at 25 °C, Thiabendazole hypophosphite HSDB

Thiabendazole solubility

Property Value Conditions Source
Solubility Max solubility in water at pH 2.2: 3.84%; slightly sol in alcohols, esters, chlorinated hydrocarbons HSDB
Slightly soluble in ethanol HSDB
In n-heptane <0.1, xylene 0.13, methanol 8.28, 1,2-dichloroethane 0.81, acetone 2.43, ethyl acetate 1.49, n-octanol 3.91, all in g/L at 25 °C at 25 °C HSDB

Thiabendazole vapor pressure

Property Value Conditions Source
Vapor pressure 4e-9 mmHg at 25 °C HSDB
Negligible (NTP, 1992) CAMEO

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

09 · Handling and storage

Thiabendazole storage and handling

Thiabendazole storage conditions

Thiabendazole tablets and oral suspension should be stored in tight containers at 15 - 30 °C. The oral suspension should be protected from freezing.

Source: Hazardous Substances Data Bank (HSDB)

Thiabendazole incompatible materials

Incompatible with a number of pesticides including copper-containing fungicides, & highly alkaline materials.

Source: Hazardous Substances Data Bank (HSDB)

Thiabendazole reactivity

THIABENDAZOLE is incompatible with a number of pesticides, including copper-containing fungicides, and with highly alkaline materials. It is a chelating agent, binding many metals including iron, but not calcium (NTP, 1992)

Source: CAMEO Chemicals

Planning storage for a mix of chemicals? Check Thiabendazole in the storage compatibility matrix →

10 · Questions

Thiabendazole — frequently asked questions

What is the CAS number of Thiabendazole?

The CAS number of Thiabendazole is 148-79-8. Its EC number is 205-725-8.

What is the chemical formula of Thiabendazole?

The molecular formula of Thiabendazole is C10H7N3S and its molecular weight is 201.25 g/mol.

What does a Thiabendazole label have to show?

Under CLP Annex VI the label for Thiabendazole carries the pictogram Environment and the signal word is Warning.

Is Thiabendazole flammable?

CLP Annex VI assigns Thiabendazole no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.

Is Thiabendazole a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Thiabendazole. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.

What is the melting point of Thiabendazole?

The melting point reported for Thiabendazole is 304.5 °C (580.1 °F), range, midpoint shown (HSDB).

How should Thiabendazole be stored?

Thiabendazole tablets and oral suspension should be stored in tight containers at 15 - 30 °C. The oral suspension should be protected from freezing. (Hazardous Substances Data Bank (HSDB))

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