N-(2-氯-4-吡啶基)-N'-苯基脲

Description

N-(2-chloro-4-pyridyl)-N'-phenylurea · CAS 68157-60-8 · C12H10ClN3O. UNII K62IP7463J. Melting Point: 165-170 °C; Solubility: In water = 39 mg/L (pH 6.4, 21 °C); Density: 1.3839 at 25 °C.

Identification

CAS Registry Number	68157-60-8
PubChem CID	93379
Molecular formula	C12H10ClN3O
IUPAC name	1-(2-chloro-4-pyridinyl)-3-phenylurea
UNII (FDA)	K62IP7463J

Computed Descriptors

Molecular Weight	247.68
XLogP3	2.4
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	2
Exact Mass	247.0512396
Monoisotopic Mass	247.0512396
Topological Polar Surface Area	54
Heavy Atom Count	17
Formal Charge	0

Physical & Chemical Properties

Melting Point	165-170 °C
Solubility	In water = 39 mg/L (pH 6.4, 21 °C)
Density	1.3839 at 25 °C
LogP	log Kow = 3.2 at 20 °C
LogP	3.2
Dissociation Constants	pKa1 = 2.5; pKa2 = 12.25

Physical description & handling notes

• White to off-white crystalline powder
• FLASH POINT, °F: >200 Pensky Martin Closed Cup /Kim Blue Plant Growth Regulator/
• In methanol 119 g/L, ethanol 149 g/L, acetone 127 g/L, chlorofrom 2.7 g/LApplied at 1-1000 ppm, depending on crop.
• 3.45X10-10 mm Hg at 25 °C (gas saturation method)
• Henry's Law constant = 2.86X10-12 atm-cu m/mol at 25 °C
• Product is stable under normal conditions. /Kim Blue Plant Growth Regulator/

GHS Hazard Classification

Reported hazard statements	H351, H411, H320, H335, H361, H371, H401

Documented Uses

• Forchlorfenuron is a plant growth regulator registered for use on grapes raisins, and kiwifruit.
• Plant growth regulator. Used to increase the size of kiwi fruit and table grapes.
• Forchlorfenuron is a diphenylurea-derivative cytokinin growth stimulating substance used as plant growth regulator (PGR) to enhance fruit set, size and increase yields. Forchlorfenuronis is commonly used in horticulture to stimulate the growth of kiwi fruit and grapes.
• Applied at 1-1000 ppm, depending on crop.
• Any of the hormones produced naturally in plants and active in controlling growth and other functions. There are three primary classes: auxins, cytokinins, and gibberellins.
• Absorbed by leaves, stem, cotyledon and germinated seeds.

Synonyms

Forchlorfenuron; 68157-60-8; CPPU; 1-(2-Chloro-4-pyridyl)-3-phenylurea; N-(2-Chloro-4-pyridyl)-N'-phenylurea; Sitofex; KT-30; Urea, N-(2-chloro-4-pyridinyl)-N'-phenyl-; DTXSID1034634; K62IP7463J; N-(2-Chloro-4-pyridinyl)-N'-phenylurea; DTXCID9014634; CHEBI:81861; N-Phenyl-N'-(2-chloro-4-pyridyl)urea; RefChem:141177; N-(2-chloropyridin-4-yl)-N'-phenylcarbamimidic acid

Frequently Asked Questions

What are the CAS number and molecular formula of N-(2-chloro-4-pyridyl)-N'-phenylurea?

CAS 68157-60-8; molecular formula C12H10ClN3O; molecular weight — g/mol.

What other names is N-(2-chloro-4-pyridyl)-N'-phenylurea known by?

Forchlorfenuron, 68157-60-8, CPPU, 1-(2-Chloro-4-pyridyl)-3-phenylurea, N-(2-Chloro-4-pyridyl)-N'-phenylurea, Sitofex.

Is N-(2-chloro-4-pyridyl)-N'-phenylurea classified as hazardous?

Hazard statements reported: H351, H411, H320, H335, H361.

What are the key physical properties of N-(2-chloro-4-pyridyl)-N'-phenylurea?

Melting Point: 165-170 °C; Solubility: In water = 39 mg/L (pH 6.4, 21 °C); Density: 1.3839 at 25 °C; LogP: log Kow = 3.2 at 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.