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tert-Butylisocyanate structure
Chemical Name:
t-C4H9NCO;T-BUTYL ISOCYANATE;Tertbuty Isocyanate;TERT-BUTYL ISOCYANATE;left-Butyl isocyanate;tert-ButylIsocyanate>Isocyanatobutanegem.DWCP;TERT-BUTYL ISOCYANATE 98%;tert-Butyl isocyanate,97%;1,1-dimethylethylisocyanate
Molecular Formula:
Formula Weight:
MOL File:

tert-Butylisocyanate Properties

Melting point:
Boiling point:
85-86 °C(lit.)
0.868 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.386(lit.)
Flash point:
24 °F
storage temp. 
Clear colorless
Moisture Sensitive
CAS DataBase Reference
1609-86-5(CAS DataBase Reference)
NIST Chemistry Reference
Propane, 2-isocyanato-2-methyl-(1609-86-5)
EPA Substance Registry System
tert-Butyl isocyanate (1609-86-5)
  • Risk and Safety Statements
Signal word  Danger
Hazard statements  H225-H302-H314-H317-H330-H334-H335-H318
Precautionary statements  P303+P361+P353-P304+P340-P320-P405-P501a-P210-P260-P280-P284-P305+P351+P338-P310
Hazard Codes  F,T+,T
Risk Statements  11-14-22-26-34-37-42-36/37/38-23/24/25-10
Safety Statements  16-26-36/37/39-45-43-30-7/9
RIDADR  UN 2484 6.1/PG 1
WGK Germany  3
HazardClass  6.1
PackingGroup  I
HS Code  29291090

tert-Butylisocyanate price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 144452 tert-Butyl isocyanate 97% 1609-86-5 5g $28.1 2021-03-22 Buy
Sigma-Aldrich 144452 tert-Butyl isocyanate 97% 1609-86-5 25g $82.9 2021-03-22 Buy
Sigma-Aldrich 144452 tert-Butyl isocyanate 97% 1609-86-5 100g $286 2021-03-22 Buy

tert-Butylisocyanate Chemical Properties,Uses,Production

Chemical Properties

Clear colorless liquid

Chemical Properties

A clear, colorless, flammable liquid. Pungent odor.

General Description

A clear colorless liquid with a pungent odor. Flash point 68°F. Very toxic by ingestion, may also be toxic by skin absorption and inhalation. Vapors heavier than air. Less dense than water and insoluble in water. Vapors heavier than air. Produces toxic oxides of nitrogen during combustion.

Air & Water Reactions

Highly flammable. May react with water to produce a toxic vapor. Very slowly decomposed by water.

Reactivity Profile

tert-Butylisocyanate can react exothermically with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizing agents, hydrides, phenols, and peroxides. May undergo polymerization with acids and bases. May react with water to form tert-butylamine and carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].

Health Hazard

TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Bromoacetates and chloroacetates are extremely irritating/lachrymators. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.

Potential Exposure

tert-Butyl isocyanate is used as a reagent in organic synthesis; used as intermediates in production of pharmaceuticals and other chemicals


UN2484 tert-Butyl isocyanate, Hazard class: 6.1; Labels: 6.1—Poison Inhalation Hazard, 3—Flammable liquid. Inhalation Hazard Zone A. PGI

Purification Methods

It is LACHRYMATORY and TOXIC, and should have IR with 2251 (CN) cm-1 and no OH bands. The NMR should have one band at 1.37 ppm from TMS. Purify it by fractional distillation under reduced pressure. [Greene & Bergmark J Org Chem 36 3056 1971, Curtius J Prakt Chem 125 152 1930, Beilstein 4 IV 669.]


Highly flammable liquid and vapor; forms explosive mixture with air. Isocyanates are highly flammable and reactive with many compounds, even with themselves. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Reaction with moist air, water or alcohols may form amines and insoluble polyureas and react exothermically, releasing toxic, corrosive or flammable gases, including carbon dioxide; and, at the same time, may generate a violent release of heat increasing the concentration of fumes in the air. Incompatible with amines, aldehydes, alkali metals, ammonia, carboxylic acids, caprolactum, alkaline materials, glycols, ketones, mercaptans, hydrides, organotin catalysts, phenols, strong acids, strong bases, strong reducing agents such as hydrides, urethanes, ureas. Elevated temperatures or contact with acids, bases, tertiary amines, and acyl-chlorides may cause explosive polymerization. Attacks some plastics, rubber and coatings. Contact with metals may evolve flammable hydrogen gas. May accumulate static electrical charges, and may cause ignition of its vapors

Waste Disposal

Dispose of contents and container to an approved waste disposal plant. Use a licensed professional waste disposal service to dispose of this material. Caution: this chemical is highly flammable with a very low flash point (23.5C). Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

tert-Butylisocyanate Preparation Products And Raw materials

Raw materials

Preparation Products

tert-Butylisocyanate Suppliers

Global( 188)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 CHINA 1365 55
+86-571-8723 8903
+86-571-87063838 CHINA 997 58
career henan chemical co
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Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28229 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114 CHINA 6369 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23035 58
Chongqing Chemdad Co., Ltd
+86-13650506873 CHINA 37282 58
86-18523575427 CHINA 47496 58
Zhuozhou Wenxi import and Export Co., Ltd
+8613111626072 (WhatsApp)
Wechat: +8613111626072 Wickr me: waynehu CHINA 13187 58

View Lastest Price from tert-Butylisocyanate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-10-20 2,5-dimethyl-3-propylpyrazine
US $5.00 / KG 100g 99 20tons Wuhan wingroup Pharmaceutical Co., Ltd
2021-07-13 tert-Butylisocyanate
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 tert-Butylisocyanate
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

tert-Butylisocyanate Spectrum

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