Cis-Butene-1,4-diol

*cis*-Butene-1,4-diol
Names
	Preferred IUPAC name (2Z)-But-2-ene-1,4-diol
Identifiers
CAS Number	6117-80-2;
3D model (JSmol)	Interactive image;
ChemSpider	558888;
ECHA InfoCard	100.025.532
EC Number	228-085-1;
PubChem CID	643790;
UNII	ZA7VGU6SCV;
CompTox Dashboard (EPA)	DTXSID301018106 ;
	InChI InChI=1S/C4H8O2/c5-3-1-2-4-6/h1-2,5-6H,3-4H2/b2-1- Key: ORTVZLZNOYNASJ-UPHRSURJSA-N;
	SMILES C(/C=C\CO)O;
Properties
Chemical formula	C4H8O2
Molar mass	88.106 g·mol−1
Density	1.07
Melting point	7 °C (45 °F; 280 K)
Boiling point	141–149 °C (286–300 °F; 414–422 K)
Solubility in water	very soluble
Solubility	ethanol, acetone
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H315, H319, H335
Precautionary statements	P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501
Flash point	128 °C (262 °F; 401 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

cis-Butene-1,4-diol is a chemical compound used in the production of endosulfan. It reacts with hexachlorocyclopentadiene to form endosulfan diol. Endosulfan diol then reacts with thionyl chloride to form endosulfan.^[1]