| Identification | More | [Name]
DBDCB | [CAS]
35691-65-7 | [Synonyms]
1,2-DIBROMO-2,4-DICYANOBUTANE
2-bromo-(2-bromomethyl)glutaronitrile
2-Bromo-2-(bromomethyl)pentanedinitrile
dbdcb
2-bromo-2-(bromomethyl)-glutaronitril
2-bromo-2-(bromomethyl)-pentanedinitril
methyldibromoglutaronitrile
tektamer38
1,2-Dioromo-2,4-Dicyanaobutane
1,2-Bibromo-2,4-Dicyanobutane
Pentanedinitrile, 2-bromo-2-(bromomethyl)-
1-BROMO-1-(BROMOMETHYL)-1,3-PROPANEDICARBONITRILE
DIBROMODICYANOBUTANE
DIBROMOCYANOBUTANE
DIBROMIDICYANOBUTANE
1,2-BROMO-2,4-DICYANOBUTANE
BROMOTHALONIL
1,2 Dibromo-2,4 Dicyanobutane,DBDCB
1,2-Dibromo-2,4-dicyanobutane, 1-Bromo-1-(bromomethyl)-1,3-propanedicarbonitrile, 2-Bromo-2-(bromomethyl)glutaronitrile
2-bromo-2-bromomethylpentandinitrile | [EINECS(EC#)]
252-681-0 | [Molecular Formula]
C6H6Br2N2 | [MDL Number]
MFCD00072483 | [Molecular Weight]
265.93 | [MOL File]
35691-65-7.mol |
| Chemical Properties | Back Directory | [Appearance]
Light yellow crystalline solid or powder.
Commercial products may be soluble concentrate (liquid or
solid); pellets/tablets. Mild, acrid, sweet odor. | [Melting point ]
48-50°C | [Boiling point ]
338.6±42.0 °C(Predicted) | [density ]
1.9436 (rough estimate) | [refractive index ]
1.6300 (estimate) | [storage temp. ]
2-8°C | [solubility ]
Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) | [Water Solubility ]
Insoluble in water | [form ]
neat | [color ]
White to Almost white | [Merck ]
14,3021 | [BRN ]
1930600 | [Contact allergens]
Methyldibromoglutaronitrile is a biocide widely used as a preservative agent in cosmetics, toiletries, and metalworking fluids. It is a potent allerg | [LogP]
1.515 (est) | [CAS DataBase Reference]
35691-65-7(CAS DataBase Reference) | [EPA Substance Registry System]
35691-65-7(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
White crystal | [Definition]
ChEBI: An organobromine compound that consists of pentanedinitrile bearing bromo and bromomethyl substituents at position 2. | [General Description]
Crystals with a pungent odor. Insoluble in water. Used as a preservative in latex paint, adhesives, etc. | [Reactivity Profile]
1-BROMO-1-(BROMOMETHYL)-1,3-PROPANEDICARBONITRILE(35691-65-7) may polymerize in the presence of metals and some metal compounds. Incompatible with acids; mixing nitriles with strong oxidizing acids can lead to extremely violent reactions. Nitriles are generally incompatible with other oxidizing agents such as peroxides and epoxides. The combination of bases and nitriles can produce hydrogen cyanide. Nitriles are hydrolyzed in both aqueous acid and base to give carboxylic acids (or salts of carboxylic acids). These reactions generate heat. Peroxides convert nitriles to amides. Nitriles can react vigorously with reducing agents. | [Air & Water Reactions]
Insoluble in water. | [Potential Exposure]
Nitrile microbiocide used as a preser-
vative in food grade adhesives and as a slimicide in the
manufacture of food grade paper and paperboard; used to
control slime-forming bacteria and fungi in recirculating
water cooling system; oil recovery drilling mud systems;
paper mill and pulp mill water systems and similar indus-
trial processing and chemical systems. | [First aid]
Move victim to fresh air. Call 911 or emergency
medical service. Administer oxygen if breathing is difficult.
If this chemical gets into the eyes, remove any contact
lenses at once and irrigate immediately for at least 15 min-
utes, occasionally lifting upper and lower lids. Seek medi-
cal attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions) if
breathing has stopped, and CPR if heart action has stopped.
Transfer promptly to a medical facility. When this chemical
has been swallowed, get medical attention. Give large
quantities of water and induce vomiting. Do not make an
unconscious person vomit. Use amyl nitrate capsules if
symptoms develop. All area employees should be trained
regularly in emergency measures for cyanide poisoning and
in CPR. A cyanide antidote kit should be kept in the imme-
diate work area and must be rapidly available. Kit ingredi-
ents should be replaced every 1 2 years to ensure
freshness. Persons trained in the use of this kit, oxygen use,
and CPR must be quickly available. Give artificial respira-
tion if victim is not breathing. Do not use mouth-to-mouth
method if victim ingested or inhaled the substance; give
artificial respiration with the aid of a pocket mask
equipped with a one-way valve or other proper respiratory
medical device. Remove and isolate contaminated clothing
and shoes. In case of contact with substance, immediately lush skin or eyes with running water for at least 20 min-
utes. For minor skin contact, avoid spreading material on
unaffected skin. Keep victim warm and quiet. Effects of
exposure (inhalation, ingestion, or skin contact) to sub-
stance may be delayed. Ensure that medical personnel are
aware of the material(s) involved and take precautions to
protect themselves. Medical observation is recommended
for 24 to 48 hours after breathing overexposure, as pulmo-
nary edema may be delayed. As first aid for pulmonary
edema, a doctor or authorized paramedic may consider
administering a drug or other inhalation therapy. | [Shipping]
UN3261 Corrosive solid, acidic, organic, n.o.s.,
Hazard class: 8; Labels: 8-Corrosive material, Technical
Name Required. UN3439 Nitriles, solid, toxic, n.o.s.,
Hazard Class: 6.1; Labels: 6.1-Poisonous materials,
Technical Name Required. | [Incompatibilities]
Corrosive. Strong oxidizers and reducing
agents, strong acids and bases. Reacts with acids, steam,
warm water producing toxic and flammable hydrogen cya-
nide fumes. Hydrogen cyanide is produced when propioni-
trile is heated to decomposition. Nitriles may polymerize in
the presence of metals and some metal compounds. They
are incompatible with acids; mixing nitriles with strong
oxidizing acids can lead to extremely violent reactions.
Nitriles are generally incompatible with other oxidizing
agents such as peroxides and epoxides. The combination of bases and nitriles can produce hydrogen cyanide. Nitriles
are hydrolyzed in both aqueous acid and base to give car-
boxylic acids (or salts of carboxylic acids). These reactions
generate heat. Peroxides convert nitriles to amides. Nitriles
can react vigorously with reducing agents. Acetonitrile and
propionitrile are soluble in water, but nitriles higher than
propionitrile have low aqueous solubility. They are also
insoluble in aqueous acids
. | [Description]
1,2-Dibromo-2,4-dicyanobutane is the main sensitizer
of Euxyl K400, a widely used preservative agent in
cosmetics, toiletries or metalwork fluids.
| [Waste Disposal]
Recycle any unused portion
of the material for its approved use or return it to the manu-
facturer or supplier. Ultimate disposal of the chemical must
consider: the material’s impact on air quality; potential
migration in soil or water; effects on animal, aquatic, and
plant life; and conformance with environmental and public
health regulations
. | [Occurrence]
MDBGN was historically widely used in cosmetics, sunscreens, shampoos, liquid soaps, and barrier and moisturizing creams used at work. Other sources include moistened toilet tissues, ultrasound gel, adhesives, soluble cutting oils, latex paints, vaginal examination gel and sanitary pads. The EU ban has reduced these exposures very signifi cantly. Nevertheless, its inclusion in products used in the workplace such as barrier creams and after‐work creams makes its inclusion in the European and BSCA baseline series still relevant at the current time. | [Uses]
1,2-Dibromo-2,4-dicyanobutane is a preservative for metalworking fluids, cosmetics, adhesives, latex emulsions and paints, dispersed pigments and detergents; active ingredient in Euxyl K 400 and Tektamer 38. | [Agricultural Uses]
Microbiocide: Tolerances have been established by the U.S. Food
and Drug Administration when this substances is used as
a preservative in food-grade adhesives and as a slimicide
in the manufacture of food-grade paper and paperboard.
Used to control slime-forming bacteria and fungi in recirculating
water cooling system; oil-recovery drilling mud
systems; paper mill and pulp mill water systems and similar
industrial processing and chemical systems. | [Trade name]
BIOCHEK®; BIOCLEAR®; MERCK®
48051; METACIDE® 38; METASOL; TEKTAMER
|
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R20/22:Harmful by inhalation and if swallowed .
R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes.
R34:Causes burns.
R22:Harmful if swallowed. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
3439 | [WGK Germany ]
2 | [RTECS ]
MA5599000 | [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
29269090 | [Safety Profile]
Experimental
reproductive effects. When heated to
decomposition it emits toxic fumes of NO,
and Br-. | [Hazardous Substances Data]
35691-65-7(Hazardous Substances Data) |
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