ChemicalBook CAS DataBase List 105-55-5

105-55-5

Name	N,N'-Diethylthiourea
CAS	105-55-5
EINECS(EC#)	203-308-5
Molecular Formula	C5H12N2S
MDL Number	MFCD00004925
Molecular Weight	132.23
MOL File	105-55-5.mol

Synonyms

1,3-DIETHYL-2-THIOUREA 1,3-DIETHYLTHIOUREA DETU DIETHYL THIOUREA N,N'-DIETHYL-2-THIOUREA N，N′-Diethylthiocarbamide N,N'-DIETHYLTHIOUREA SYM-DIETHYLTHIOUREA THIATE H 1,3-diethyl-2-thio-ure 1,3-diethyl-2-thiourea[qr] 1,3-diethyl-2-thiouree 1,3-diethylthiourea[qr] n,n’-diethylthiocarbamide[qr] n,n’-diethyl-thioure n,n’-diethylthiouree N,N'-Diethylthiourea (sym) NCI-C03816 nci-c03816[qr] Pennzone E

Chemical Properties

Appearance	white to buff-coloured solid
Melting point	76-78 °C(lit.)
Boiling point	245°C (estimate)
bulk density	735kg/m3
density	1,12 g/cm³
vapor pressure	0.001Pa at 25℃
refractive index	1.5300 (estimate)
Fp	186 °C
storage temp.	Store below +30°C.
solubility	42g/l
form	solid
pka	14.47±0.70(Predicted)
color	White to Off-White
PH	7 (38g/l, H2O, 20℃)
Stability:	Stable. May be air sensitive. Incompatible with strong oxidizing agents.
Water Solubility	38 g/L (20 ºC)
BRN	773905
Henry's Law Constant	1.4×10² mol/(m³Pa) at 25℃, HSDB (2015)
InChI	1S/C5H12N2S/c1-3-6-5(8)7-4-2/h3-4H2,1-2H3,(H2,6,7,8)
Contact allergens	Diethylthiourea, a thiourea derivative, is used mainly as a rubber chemical, particularly in solid neoprene products. less more
InChIKey	FLVIGYVXZHLUHP-UHFFFAOYSA-N
SMILES	CCNC(=S)NCC
LogP	0.57
CAS DataBase Reference	105-55-5(CAS DataBase Reference)
IARC	3 (Vol. 79) 2001
NIST Chemistry Reference	Diethyl-2-thiourea(105-55-5)
EPA Substance Registry System	N,N'-Diethylthiourea (105-55-5)

Safety Data

Symbol(GHS)	GHS05,GHS07,GHS08
Signal word	Danger
Hazard statements	H302+H312-H317-H318-H351-H412
Precautionary statements	P273-P280-P301+P312-P302+P352+P312-P305+P351+P338-P308+P313
Hazard Codes	Xn,T
Risk Statements	R22:Harmful if swallowed. R40:Limited evidence of a carcinogenic effect. R45:May cause cancer. R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . less more
Safety Statements	S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S36/37:Wear suitable protective clothing and gloves . S53:Avoid exposure-obtain special instruction before use . less more
WGK Germany	2
RTECS	YS9800000
TSCA	Yes
REACH Registrations	Active
HS Code	29309070
Storage Class	11 - Combustible Solids
Hazard Classifications	Acute Tox. 4 Dermal Acute Tox. 4 Oral Aquatic Chronic 3 Carc. 2 Eye Dam. 1 Skin Sens. 1B
Safety Profile	Poison by ingestion. Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and SOx less more
Hazardous Substances Data	105-55-5(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

Chemical Properties

white to buff-coloured solid

Definition

ChEBI: Thiourea in which each nitogen carries an ethyl substituent.

General Description

Buff solid or white powder.

Reactivity Profile

N,N'-DIETHYLTHIOUREA(105-55-5) 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).

Air & Water Reactions

This material may be sensitive to exposure to air. . Slightly soluble in water.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits toxic fumes.

Fire Hazard

Flash point data are not available for this chemical, but N,N'-DIETHYLTHIOUREA is probably combustible.

Description

Diethylthiourea, a thiourea derivative, is used mainly as a rubber chemical, particularly in solid neoprene products.

Uses

Diethyl thiourea is the inhibitor of corrosion in metal pick/ing solutions; accelerator for mercaptan-modified chloroprene rubber; antidegradant for natural, nitrile-butadiene, styrene-butadiene, and chloroprene rubbers

Flammability and Explosibility

Nonflammable

Purification Methods

Crystallise it from *benzene. [Beilstein 4 H 118, 4 I 355, 4 II 610, 4 III 220, 4 IV 375.]

Material Safety Data Sheet(MSDS)

Spectrum Detail

Well-known Reagent Company Product Information

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