Putrescine

Putrescine
	Skeletal formula
	Ball-and-stick model
Names
	Preferred IUPAC name Butane-1,4-diamine
	Other names 1,4-Diaminobutane, 1,4-Butanediamine
Identifiers
CAS Number	110-60-1 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	605282
ChEBI	CHEBI:17148 ;
ChEMBL	ChEMBL46257 ;
ChemSpider	13837702 ;
DrugBank	DB01917 ;
ECHA InfoCard	100.003.440
EC Number	203-782-3;
Gmelin Reference	1715
IUPHAR/BPS	2388;
KEGG	C00134 ;
MeSH	Putrescine
PubChem CID	1045;
RTECS number	EJ6800000;
UNII	V10TVZ52E4 ;
UN number	2928
CompTox Dashboard (EPA)	DTXSID4041107 ;
	InChI InChI=1S/C4H12N2/c5-3-1-2-4-6/h1-6H2 Key: KIDHWZJUCRJVML-UHFFFAOYSA-N ;
	SMILES NCCCCN;
Properties
Chemical formula	C4H12N2
Molar mass	88.154 g·mol−1
Appearance	Colourless crystals
Odor	very unpleasant; putrid, fishy-ammoniacal
Density	0.877 g/mL
Melting point	27.5 °C (81.5 °F; 300.6 K)
Boiling point	158.6 °C; 317.4 °F; 431.7 K
Solubility in water	Miscible
log P	−0.466
Vapor pressure	2.33 mm Hg at 25 deg C (est)
Henry's law; constant (kH)	3.54x10−10 atm-cu m/mol at 25 deg C (est)
Refractive index (nD)	1.457
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H228, H302, H312, H314, H331
Precautionary statements	P210, P261, P280, P305+P351+P338, P310
Flash point	51 °C (124 °F; 324 K)
Explosive limits	0.98–9.08%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	463 mg kg−1 (oral, rat); 1.576 g kg−1 (dermal, rabbit);
Related compounds
Related alkanamines	Propylamine; Isopropylamine; 1,2-Diaminopropane; 1,3-Diaminopropane; Isobutylamine; tert-Butylamine; n-Butylamine; sec-Butylamine; 1-Aminopentane; Cadaverine;
Related compounds	2-Methyl-2-nitrosopropane; Nylon 46;
	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

Putrescine is an organic compound with the formula (CH₂)₄(NH₂)₂. It is a colorless solid that melts near room temperature. It is classified as a diamine. Together with cadaverine, it is largely responsible for the foul odor of putrefying flesh, but also contributes to other unpleasant odors.