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Insecticides and acaricides

Lethane

Also known as 2-(2-Butoxyethoxy)ethyl thiocyanate, Lethane 384, Butyl carbitol rhodanate

CAS 112-56-1Formula C9H17NO2SMolar mass 203.31 g/molEC 203-985-7
GHS signal word: Danger. Pictograms: Flammable, Acute toxicity (severe) 1 supplier listed
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Lethane chemical structure, C9H17NO2S, CAS 112-56-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Boiling point
120 to 125
Density
0.915-0.930 @ 25 °C
Flash point
51.7 °C
Solubility
PRACTICALLY INSOL IN WATER, MISCIBLE WITH HYDROCARBONS & MOST ORGANIC SOLVENTS
HS code
293090
Category
Insecticides and acaricides
UN number
UN 2810
Illustrative photo, a closed 1000 litre IBC tote in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Lethane?

Plain description, key identifiers and synonyms

2-(2-butoxyethoxy)ethyl thiocyanate appears as brownish oil or clear yellow liquid. (NTP, 1992)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(2-butoxyethoxy)ethyl thiocyanate
CAS number
112-56-1 CAS number cross-checked
EC number
203-985-7
Molecular formula
C9H17NO2S
UNII
Z8ANL9B54I
MDL number
MFCD00085536
InChIKey
JVGPVVUTUMQJKL-UHFFFAOYSA-N
InChI
InChI=1S/C9H17NO2S/c1-2-3-4-11-5-6-12-7-8-13-9-10/h2-8H2,1H3
SMILES (canonical and isomeric)
CCCCOCCOCCSC#N

Synonyms

  • 2-(2-Butoxyethoxy)ethyl thiocyanate
  • Lethane 384
  • Butyl carbitol rhodanate
  • ENT 6
  • Butoxyrhodanodiethyl ether
  • Butyl carbitol thiocyanate
  • Lethane 384 regular
  • 1-Butoxy-2-(2-thiocyanoethoxy)ethane
  • 2-Butoxy-2'-thiocyanodiethyl ether
  • Thiocyanic acid, 2-(2-butoxyethoxy)ethyl ester
  • Ethane, 1-butoxy-2-(2-thiocyanatoethoxy)-
  • Ethanol, 2-(2-butoxyethoxy)-, thiocyanate
  • 2-(2-(Butoxy)ethoxy)ethyl thiocyanic acid ester
  • beta-Butoxy-beta'-thiocyanodiethyl ether
  • 1-Butoxy-alpha-(2-thiocyanoethoxy)ethane
  • 2-[2-(Butoxy)ethoxy]ethyl thiocyanic acid ester
  • 2-(2-Butoxyethoxy)ethylthiokyanat
  • 2-(2-Butoxyethoxy)ethylthiocyanate
  • 2-[2-Butoxyethoxy]ethylthiocyanate
  • beta-Butoxy beta'-thiocyano diethyl ether
  • 2-(2-(Butoxy)ethoxy) ester of thiocyanic acid
  • 2-(2-Butoxyethoxy)ethyl ester of thiocyanic acid
  • Ethanol, thiocyanate
  • beta-Butoxy-beta'-thiocyano diethyl ether
  • 1-butoxy-2-[2-(cyanosulfanyl)ethoxy]ethane
Show all 27 synonyms
  • Diethylene glycol monobutyl ether thiocyanate
  • Lethane 384 special (use 2 code nos. 010002 and 010101)

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
Liquidexp.
Boiling point
120 to 125exp.
Density
0.915-0.930 @ 25 °Cexp.
Flash point
51.7 °Cexp.
Solubility
PRACTICALLY INSOL IN WATER, MISCIBLE WITH HYDROCARBONS & MOST ORGANIC SOLVENTSexp.

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
203.31 g/molcalc.
Exact mass
203.098 Dacalc.
LogP (octanol/water)
2.03calc.
Topological polar surface area
42.25 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
9calc.
Heavy atoms
13calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.89calc.
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
Danger
GHS02: Flammable
Flammable
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H226Flammable liquid and vapour.
  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
Precautionary statements (21)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2810

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

Lethane suppliers

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Where suppliers are based

1 supplier in 1 country

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Lethane 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

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

Insecticide.

Use classes: Insecticides.

How it is made

Made by reacting 2-(2-butoxyethoxy)ethyl chloride with sodium thiocyanate...

Prepn of thiocyanic acid 2-(2-hydroxyethoxy)ethyl ester, an example of an intermediate in the prepn of insecticides in which the terminal oh group is etherified: bruson, us patent 2,372,809 (1945 to rohm & haas).

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 615-018-00-X

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Lethane?

2-(2-butoxyethoxy)ethyl thiocyanate appears as brownish oil or clear yellow liquid. (NTP, 1992)

What is the CAS number of Lethane?

The CAS registry number of Lethane is 112-56-1.

What is the molecular formula and weight of Lethane?

The molecular formula of Lethane is C9H17NO2S and its molar mass is 203.31 g/mol.

What is Lethane used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Insecticide. Use classes: Insecticides.

Is Lethane hazardous?

Lethane carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, toxic if swallowed, toxic in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Lethane?

Lethane is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Lethane?

CompoundList lists 1 supplier of Lethane in Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Lethane?

Suppliers quote Lethane 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 Lethane

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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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