Methyldibromo glutaronitrile

Methyldibromo glutaronitrile
Names
	IUPAC name 2-Bromo-2-(bromomethyl)-pentanedinitrile
	Other names 1,2-Dibromo-2,4-dicyanobutane; 1-Bromo-1-(bromomethyl)-1,3-propanedicarbonitrile; 2-Bromo-2-(bromomethyl) glutaronitrile; 2-Bromo-2-(bromomethyl)pentanedinitrile; Bromothalonil; Euxyl K400; Tektamer 38; Merquat 2200; Metacide 38
Identifiers
CAS Number	35691-65-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:62823;
ChemSpider	55806;
ECHA InfoCard	100.047.877
EC Number	252-681-0;
PubChem CID	61948;
UNII	YX089CPS05 ;
CompTox Dashboard (EPA)	DTXSID3024944 ;
	InChI InChI=1S/C6H6Br2N2/c7-4-6(8,5-10)2-1-3-9/h1-2,4H2 Key: DHVLDKHFGIVEIP-UHFFFAOYSA-N; InChI=1/C6H6Br2N2/c7-4-6(8,5-10)2-1-3-9/h1-2,4H2 Key: DHVLDKHFGIVEIP-UHFFFAOYAK;
	SMILES C(CC(CBr)(C#N)Br)C#N;
Properties
Chemical formula	C6H6Br2N2
Molar mass	265.936 g·mol−1
Appearance	White to yellow crystals
Melting point	51.2 to 52.5 °C (124.2 to 126.5 °F; 324.3 to 325.6 K)
Boiling point	212 °C (414 °F; 485 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Methyldibromo glutaronitrile (MDBGN) is a widely used preservative.

It is made by reacting bromine with 2-methyleneglutaronitrile below 30 °C. An allergy to the chemical can be discovered by performing a patch test.