1,3-Dicyclohexylthiourea Property

Melting point:

33 °C

Boiling point:

345.3±25.0 °C(Predicted)

Density 

1.0285 (rough estimate)

refractive index 

1.5700 (estimate)

storage temp. 

Sealed in dry,Room Temperature

form 

powder to crystal

pka

13.80±0.20(Predicted)

color 

White to Almost white

Water Solubility 

<0.01 g/100 mL at 21 ºC

BRN 

517587

CAS DataBase Reference

1212-29-9(CAS DataBase Reference)

EPA Substance Registry System

N,N'-Dicyclohexylthiourea (1212-29-9)

Safety

Risk Statements 

22

Safety Statements 

22-36/37

RIDADR 

2811

RTECS 

YS9300000

TSCA 

Yes

HS Code 

2930.90.9250

PackingGroup 

III

Hazardous Substances Data

1212-29-9(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P501Dispose of contents/container to..…

1,3-Dicyclohexylthiourea Chemical Properties,Usage,Production

Uses

1,3-Dicyclohexylthiourea is used in the evaluation of its sensitivity, specificity and relative predictivity of battery of three in vitro genotoxicity tests to discriminate rodent carcinogens and non-carcinogens.

General Description

White crystals.

Air & Water Reactions

1,3-Dicyclohexylthiourea may be sensitive to prolonged exposure to air. Insoluble in water.

Reactivity Profile

1,3-Dicyclohexylthiourea is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx). 1,3-Dicyclohexylthiourea is incompatible with acids and oxidizing agents. 1,3-Dicyclohexylthiourea reacts with water.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition 1,3-Dicyclohexylthiourea emits very toxic fumes.

Fire Hazard

Flash point data for 1,3-Dicyclohexylthiourea are not available. 1,3-Dicyclohexylthiourea is probably combustible.