2,2-Dichloropropionic acid

2,2-Dichloropropionic acid
Names
	IUPAC name 2,2-Dichloropropanoic acid
Identifiers
CAS Number	75-99-0;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:81859;
ChEMBL	ChEMBL445525;
ChemSpider	6178;
ECHA InfoCard	100.000.840
EC Number	200-923-0;
KEGG	C18600;
PubChem CID	6418;
RTECS number	UF0690000;
UNII	VO6PY8ZMRW;
UN number	1760
CompTox Dashboard (EPA)	DTXSID2021575 ;
	InChI InChI=1S/C3H4Cl2O2/c1-3(4,5)2(6)7/h1H3,(H,6,7) Key: NDUPDOJHUQKPAG-UHFFFAOYSA-N;
	SMILES CC(C(=O)O)(Cl)Cl;
Properties
Chemical formula	C3H4Cl2O2
Molar mass	142.96 g·mol−1
Appearance	colorless oil
Density	1.40 g/cm3 (20 °C)
Melting point	13-15
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H315, H318, H412
GHS precautionary statements	P264, P273, P280, P302+352, P305+351+338, P310, P321, P332+313, P362, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

2,2-Dichloropropionic acid is the organic compound with the formula CH₃CCl₂CO₂H.[1] A colorless liquiud, it once was marketed under the name Dalapon as a selective herbicide used to control perennial grasses. The major use of dalapon was on food crops including sugarcane and sugar beets.[2]

Regulation

Its use is no longer authorized in France.[3]

The National Institute for Occupational Safety and Health in the United States has identified it as a potential workplace hazard. The recommended time-weighted average exposure limit is 6 milligrams per cubic meter during a 10-hour workday.[4]

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References

Samel, Ulf-Rainer; Kohler, Walter; Gamer, Armin Otto; Keuser, Ullrich (2005). "Propionic Acid and Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a22_223.
"Dalapon". pmep.cce.cornell.edu. Retrieved 2016-08-31.
"Retrait de l'autorisation de mise sur marché des préparations contenant du Dalapon". 18 August 2002. Archived from the original (PDF) on 18 October 2009. Retrieved 7 June 2016.
"CDC - NIOSH Pocket Guide to Chemical Hazards - 2,2-Dichloropropionic acid". www.cdc.gov. Retrieved 2016-06-07.

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[Ullmann-1] Samel, Ulf-Rainer; Kohler, Walter; Gamer, Armin Otto; Keuser, Ullrich (2005). "Propionic Acid and Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a22_223.

[2] "Dalapon". pmep.cce.cornell.edu. Retrieved 2016-08-31.

[3] "Retrait de l'autorisation de mise sur marché des préparations contenant du Dalapon". 18 August 2002. Archived from the original (PDF) on 18 October 2009. Retrieved 7 June 2016.

[:0-4] "CDC - NIOSH Pocket Guide to Chemical Hazards - 2,2-Dichloropropionic acid". www.cdc.gov. Retrieved 2016-06-07.