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DBDCB

Product Name
DBDCB
CAS No.
35691-65-7
Chemical Name
DBDCB
Synonyms
BROMOTHALONIL;DIBROMODICYANOBUTANE;1,2-DIBROMO-2,4-DICYANOBUTANE;methyldibromoglutaronitrile;Pentanedinitrile, 2-bromo-2-(bromomethyl)-;BBMG;dbdcb;tektamer38;Bromotrile;Tektamer 38AD
CBNumber
CB9318706
Molecular Formula
C6H6Br2N2
Formula Weight
265.93
MOL File
35691-65-7.mol
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DBDCB Property

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
Water Solubility 
Insoluble in water
solubility 
Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
color 
White to Almost white
Merck 
14,3021
BRN 
1930600
LogP
1.515 (est)
CAS DataBase Reference
35691-65-7(CAS DataBase Reference)
EPA Substance Registry System
1-Bromo-1-(bromomethyl)-1,3-propanedicarbonitrile (35691-65-7)
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Safety

Hazard Codes 
Xn
Risk Statements 
20/22-37/38-41-34-22
Safety Statements 
26-36/37/39-45
RIDADR 
3439
WGK Germany 
2
RTECS 
MA5599000
HazardClass 
9
PackingGroup 
III
HS Code 
29269090
Hazardous Substances Data
35691-65-7(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
34392
Product name
Methyldibromoglutaronitrile
Purity
analytical standard
Packaging
500mg
Price
$69.1
Updated
2024/03/01
TCI Chemical
Product number
B5387
Product name
2-Bromo-2-(bromomethyl)glutaronitrile
Purity
>98.0%(GC)
Packaging
5g
Price
$24
Updated
2024/03/01
TCI Chemical
Product number
B5387
Product name
2-Bromo-2-(bromomethyl)glutaronitrile
Purity
>98.0%(GC)
Packaging
25g
Price
$69
Updated
2024/03/01
TRC
Product number
B695450
Product name
Bromothalonil
Packaging
5g
Price
$95
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD39707
Product name
1,2-Dibromo-2,4-dicyanobutane
Packaging
50g
Price
$140
Updated
2021/12/16
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DBDCB Chemical Properties,Usage,Production

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.
Methyldibromo glutaronitrile (MDBGN), also known as dibromocyanobutane, is to be found in the preservative system Euxyl K 400 (also called Tektamer 38), which is a mix of MDBGN and phenoxyethanol in a ratio of 1:4. Euxyl K 400 is a broad‐spectrum preservative with activity against fungi and bacteria. MDBGN is nearly always the allergen when sensitization to Euxyl K 400 occurs.

Chemical Properties

Light yellow crystalline solid or powder. Commercial products may be soluble concentrate (liquid or solid); pellets/tablets. Mild, acrid, sweet odor.

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.

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.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

DBDCB 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.

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

Contact allergens

Methyldibromo glutaronitrile is a biocide widely used as a preservative agent in cosmetics, toiletries, and metalworking fluids. It is a potent allergen, banned in all cosmetics in the EU since 2007.

Safety Profile

Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NO, and Br-.

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.

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 .

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 .

DBDCB Preparation Products And Raw materials

Raw materials

Preparation Products

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DBDCB Suppliers

Jiangsu Yancheng entrusted ball Chemical Co.
Tel
0515-88553345
Fax
+86-0577-88553345
Email
sales@tuoqiu.com
Country
China
ProdList
14
Advantage
47
Hebei Dueling International Trade Co. LTD
Tel
18032116176
Email
399549586@qq.com
Country
China
ProdList
1181
Advantage
58
Creasyn Finechem(Tianjin) Co., Ltd.
Tel
022-022-83946278 13820372920
Fax
022-83945176
Email
sales@creasyn.com
Country
China
ProdList
1005
Advantage
68
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
TAIYUAN RHF CO.,LTD.
Tel
+86 351 7031519
Fax
+86 351 7031519
Email
sales@RHFChem.com
Country
China
ProdList
2341
Advantage
56
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42982
Advantage
64
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14443
Advantage
57
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View Lastest Price from DBDCB manufacturers

Hebei Duling International Trade Co. LTD
Product
DBDCB 35691-65-7
Price
US $1.00/kg
Min. Order
25kg
Purity
99.5%
Supply Ability
100tons
Release date
2023-03-24
Career Henan Chemical Co
Product
DBDCB 35691-65-7
Price
US $7.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100KG
Release date
2019-12-30

35691-65-7, DBDCBRelated Search:


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  • 2-bromo-2-(bromomethyl)-pentanedinitril
  • 1-BROMO-1-(BROMOMETHYL)-1,3-PROPANEDICARBONITRILE
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  • 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
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  • 1,2-Bibromo-2,4-Dicyanobutane
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  • 4-DICYANOBUTANE
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