1,4-Butanediol

1,4-Butanediol
Names
	Preferred IUPAC name Butane-1,4-diol
	Other names Tetramethylene glycol
Identifiers
CAS Number	110-63-4 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEBI	CHEBI:41189 ;
ChEMBL	ChEMBL171623 ;
ChemSpider	13835209 ;
DrugBank	DB01955 ;
ECHA InfoCard	100.003.443
EC Number	203-786-5;
PubChem CID	8064;
RTECS number	EK0525000;
UNII	7XOO2LE6G3 ;
CompTox Dashboard (EPA)	DTXSID2024666 ;
	InChI InChI=1S/C4H10O2/c5-3-1-2-4-6/h5-6H,1-4H2 Key: WERYXYBDKMZEQL-UHFFFAOYSA-N ; InChI=1/C4H10O2/c5-3-1-2-4-6/h5-6H,1-4H2;
	SMILES OCCCCO; C(CCO)CO;
Properties
Chemical formula	C4H10O2
Molar mass	90.122 g·mol−1
Density	1.0171 g/cm3 (20 °C)
Melting point	20.1 °C (68.2 °F; 293.2 K)
Boiling point	235 °C (455 °F; 508 K)
Solubility in water	Miscible
Solubility in ethanol	Soluble
Magnetic susceptibility (χ)	-61.5·10−6 cm3/mol
Refractive index (nD)	1.4460 (20 °C)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H336
Precautionary statements	P261, P264, P270, P271, P301+P312, P304+P340, P312, P330, P403+P233, P405, P501
NFPA 704 (fire diamond)	1 1 0
Flash point	(open cup) 121 °C (250 °F; 394 K)
Autoignition; temperature	350 °C (662 °F; 623 K)
Related compounds
Related butanediols	1,2-Butanediol; 1,3-Butanediol; 2,3-Butanediol; cis-Butene-1,4-diol
Related compounds	Succinaldehyde; Succinic acid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,4-Butanediol, also called Butane-1,4-diol (other names include 1,4-B, BD, BDO and 1,4-BD), is a primary alcohol and an organic compound with the formula HOCH₂CH₂CH₂CH₂OH. It is a colorless viscous liquid first synthesized in 1890 via acidic hydrolysis of N,N'-dinitro-1,4-butanediamine by Dutch chemist Pieter Johannes Dekkers, who called it "tetramethylene glycol".

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