ChemicalBook > CAS DataBase List > P-TOLYLUREA

P-TOLYLUREA

Product Name: P-TOLYLUREA
CAS No.: 622-51-5
Chemical Name: P-TOLYLUREA
Synonyms: NSC 66557;nci-c02153;P-TOLYLUREA;p-tolyl-ure;4-tolylurea;AKOS B028828;Urea, p-tolyl.;PARA-TOLYLUREA;p-Tolylurea,99%;1-(p-Tolyl)urea
CBNumber: CB4700713
Molecular Formula: C8H10N2O
Formula Weight: 150.18
MOL File: 622-51-5.mol

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P-TOLYLUREA Property

Melting point:: 178-181 °C
Boiling point:: 255℃
Density: 1.192
refractive index: 1.6180 (estimate)
Flash point:: 108℃
storage temp.: 2-8°C
form: powder to crystal
pka: 14.61±0.50(Predicted)
color: White to Almost white
Water Solubility: 3.07g/L(45 ºC)
BRN: 2208088
CAS DataBase Reference: 622-51-5(CAS DataBase Reference)
EPA Substance Registry System: p-Tolylurea (622-51-5)

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Safety

Risk Statements: 33
Safety Statements: 24/25
RTECS: YU4200000
HazardClass: IRRITANT
HS Code: 29242100

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: S365149
Product name: PARA-TOLYLUREA
Purity: Aldrich<sup>CPR</sup>
Packaging: 1 unit
Price: $185
Updated: 2025/07/31

Sigma-Aldrich

Product number: S365149
Product name: PARA-TOLYLUREA
Purity: AldrichCPR
Packaging: 250MG
Price: $179
Updated: 2024/03/01

TCI Chemical

Product number: T0328
Product name: p-Tolylurea
Purity: >98.0%(HPLC)
Packaging: 25g
Price: $180
Updated: 2025/07/31

TRC

Product number: T537008
Product name: p-Tolylurea
Packaging: 50mg
Price: $45
Updated: 2021/12/16

Oakwood

Product number: 018865
Product name: 4-Methylphenylurea
Purity: 99%
Packaging: 1g
Price: $18
Updated: 2021/12/16

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P-TOLYLUREA Chemical Properties,Usage,Production

Chemical Properties

beige crystalline powder

General Description

Colorless crystals.

Air & Water Reactions

Slightly soluble in hot water.

Reactivity Profile

P-TOLYLUREA 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).

Health Hazard

ACUTE/CHRONIC HAZARDS: Slightly toxic. Hazardous decomposition products.

Purification Methods

Crystallise the urea from H2O (m 186o), EtOH/water (1:1) or aqueous AcOH (m 184o). [Beilstein 12 H 941, 12 I 425, 12 II 512, 12 III 2084, 12 IV 1923.]

P-TOLYLUREA Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from P-TOLYLUREA manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: P-TOLYLUREA 622-51-5
Price: US $1000.00/KG
Min. Order: 0.1KG
Purity: 98%HPLC
Supply Ability: 2tons
Release date: 2025-08-15

622-51-5, P-TOLYLUREARelated Search:

2,4-DIMETHYLPHENYLUREA P-TOLYLUREA Chlorotoluron 3,3'-(4-METHYL-1,3-PHENYLENE) BIS (1,1-DIMETHYLUREA) 2-THIO-1-O-TOLYLUREA 1,3-di-p-tolylurea 5-FLUORO-O-TOLYLUREA o-Tolylurea,98%,O-TOLYLUREA m-Tolylurea,98%,meta-Tolylurea,3-Tolylurea,1-Tolylurea,M-TOLYLUREA DYMRON 2-THIO-1-P-TOLYLUREA 1-(3-CHLORO-4-METHYLPHENYL)UREA 4-UREIDO-BENZOIC ACID 4-[(ANILINOCARBONYL)AMINO]BENZOIC ACID SYM-DI-O-TOLYLUREA tolylurea (2,4,6-trimethylphenyl)urea (+)-1-[(R)-α-Methylbenzyl]-3-p-tolylurea,1-[(R)-α-Methylbenzyl]-3-p-tolylurea

P-TOLYLUREA

p-Tolylurea,99%

4-METHYLPHENYLUREA

AKOS B028828

1-(p-Methylphenyl)urea

1-(p-Tolyl)urea

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1-(4-Methylphenyl)urea

NSC 66557

<i>p</i>-Tolylurea

nci-c02153

p-tolycarbamide

p-tolyl-ure

p-Tolylurea,98+%

Urea, p-tolyl.

4-tolylurea

PARA-TOLYLUREA

Urea, N-(4-methylphenyl)-

622-51-5