Preservatives & Biocides
REACH
Methyldibromo glutaronitrile
CAS Number
35691-65-7
EC Number
252-681-0
Abbreviation
MDBGN
What is Methyldibromo glutaronitrile?
Methyldibromo glutaronitrile (CAS 35691-65-7), or MDBGN, is a broad-spectrum biocide that controls microbial growth in industrial and consumer formulations.
Where is Methyldibromo glutaronitrile used?
- Water treatment and industrial process fluids: microbial contamination control
- Cooling water systems, paper mill circuits and metalworking fluids
- Coatings, adhesives and sealants: in-can preservative extending shelf life
- Textile, leather and pulp and paper: protection of wet-process materials and finished goods from microbial degradation
- It has also been used in personal care formulations as a preservation booster.
Good to know: Regulatory restrictions in cosmetics vary by market and must be verified before sourcing for that application; buyers should confirm regional regulatory status prior to procurement. Approved concentrations differ across jurisdictions.
Other Names (Synonyms)
MDGN|2-Bromo-2-bromomethylglutaronitrile|1-Bromo-1-(bromomethyl)-1,3-propanedicarbonitrile|1,2-Dibromo-2,4-dicyanobutane|2-BROMO-2-(BROMOMETHYL)PENTANEDINITRILE|Tektamer 38|Tektamer|BBMG|MDBGN
What are the physical properties of Methyldibromo glutaronitrile?
Melting Point 52 °C
Boiling Point 338.6±42.0 °C(Predicted)
Density 1.9436 (rough estimate)
Appearance Light yellow crystalline solid or powder. Commercial products may be soluble concentrate (liquid or solid); pellets/tablets. Mild, acrid, sweet odor.
Color White to Almost white
Form neat
Water Solubility Insoluble in water
Refractive Index 1.6300 (estimate)
Log P 1.515 (est)
How is Methyldibromo glutaronitrile classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H302 Harmful if swallowed
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H400 Very toxic to aquatic life
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P272 Contaminated work clothing should not be allowed out of the workplace.
Which trade and regulatory codes apply to Methyldibromo glutaronitrile?
HS Code 29269090
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 2