DCMU

DCMU (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is an algicide and herbicide of the arylurea class that inhibits photosynthesis. It was introduced by Bayer in 1954 under the trade name of Diuron.

Not to be confused with the mercurial diuretic Diurone. For the DC comics Movie Universe, see DC Extended Universe.
DCMU
Names
Preferred IUPAC name
N′-(3,4-Dichlorophenyl)-N,N-dimethylurea
Other names
3-(3,4-Dichlorophenyl)-1,1-dimethylurea, Karmex, Diuron, Direx
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.005.778
EC Number
  • 206-354-4
KEGG
RTECS number
  • YS8925000
UNII
UN number 3077, 2767
  • InChI=1S/C9H10Cl2N2O/c1-13(2)9(14)12-6-3-4-7(10)8(11)5-6/h3-5H,1-2H3,(H,12,14) Y
    Key: XMTQQYYKAHVGBJ-UHFFFAOYSA-N Y
  • Clc1ccc(NC(=O)N(C)C)cc1Cl
Properties
C9H10Cl2N2O
Molar mass 233.09 g·mol−1
Appearance white crystalline solid
Density 1.48 g/cm3
Melting point 158 °C (316 °F; 431 K)
Boiling point 180 °C (356 °F; 453 K)
42 mg/L
Vapor pressure 0.000000002 mmHg (20°C)
Hazards
GHS labelling:
Warning
H302, H351, H373, H410
P201, P202, P260, P264, P270, P273, P281, P301+P312, P308+P313, P314, P330, P391, P405, P501
Flash point noncombustible
NIOSH (US health exposure limits):
PEL (Permissible)
 none
REL (Recommended)
 TWA 10 mg/m3
IDLH (Immediate danger)
 N.D.
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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