2-bromo-2-(bromomethyl)pentanedinitrile is an organobromine compound that consists of pentanedinitrile bearing bromo and bromomethyl substituents at position 2.
Definition
US FDA substance register · UNII YX089CPS05 · registered name Methyldibromoglutaronitrile · single chemical substance
2-bromo-2-(bromomethyl)pentanedinitrile is an organobromine compound that consists of pentanedinitrile bearing bromo and bromomethyl substituents at position 2. It has a role as a sensitiser and an allergen. It is an organobromine compound and an aliphatic nitrile.
Source: PubChem
Methyldibromo Glutaronitrile is the brominated methylene glutaronitrile that conforms to the formula
Cosmetic roles
Safety & regulatory references
- Banned
- China · South Korea
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Reviewed by CIR: Final Report on the Safety Assessment of Methyldibromo Glutaronitrile
Reviewed by CIR: 40th Anniversary Overview and Rereview Summaries From 2011 to 2015
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name メチルジブロモグルタロニトリル: 本品は、次の化学式で表されるシアノ化合物である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 35691-65-7
- EC No.EU chemical inventory number
- 252-681-0
- DTXSIDUS EPA chemical ID
- DTXSID3024944
- DTXCIDUS EPA compound ID
- DTXCID004944
- IUPAC
- 2-Bromo-2-(bromomethyl)pentanedinitrile
- Molecular formula
- C6H6Br2N2
- Molecular weight
- 265.936 g/mol
Measured properties
- Appearance
- Crystals with a pungent odor. Insoluble in water. Used as a preservative in latex paint, adhesives, etc. · Crystals with a pungent odor, [CAMEO]
- Odour
- Slightly sweet odor · Mildly pungent odor
- Boiling point
- 212 °C
- Melting point
- 52 °C · 51-52 °C
- Solubility
- Very soluble in chloroform, ethyl acetate. Soluble in methanol, ethanol, ether. · Very soluble in acetone, benzene, dimethylformamide
- Density
- 0.970 g/mL at 20 °C · Relative density (water = 1): 1.1
- Stability
- The chemical was found to be stable when subjected to Al, Sn, Ni, Fe, thermal and photosensitivity tests. One year storage at room temperature did not produce any significant change regarding purity, color, specific gravity, and refractive index.
- Melting/freezing point
- 52 ℃
- Vapour pressure
- 0.00025 ㎜Hg (25 deg C)
- Water solubility
- 1300 ㎎/ℓ (25 deg C)
- n-Octanol/water partition coefficient (Kow)
- 1.63
- Molecular weight
- 265.94
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 8 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Preservative5
- Biocide1
- Elasticizer1
- Processing aids not otherwise specified1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
4 skin studies and 2 eye studies are on record.
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 6 studies
- SkinSens1
Skin Sensitization · QSAR Predicted - Sh
Skin Sensitization · Authoritative - Category 6.3A (Category 2)
Skin Irritation · Read Across - Skin sensitisation - category 1
Skin Sensitization · Screening - Category 6.4A (Category 2A)
Eye Irritation · Read Across - Eye damage - category 1
Eye Irritation · Screening
Source: US EPA CompTox dashboard
Related literature
- Should methyldibromo glutaronitrile in the baseline series be tested? Results of the skin allergy unit of a fourth‐level hospital in Spain · 2020
- Methyldibromo Glutaronitrile · 2017
- Undisclosed methyldibromo glutaronitrile causing allergic contact dermatitis in a NSAID cream · 2012
- Allergic contact dermatitis from methyldibromo glutaronitrile – clinical cases from 2003 · 2005
- Influence of a detergent on skin response to methyldibromo glutaronitrile in sensitized individuals · 2004
Linked databases 21
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- EU SCCS safety opinions 2 3
- JCIA labelling names (Japan)
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic regulatory information 2 3
- PubChem 2
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2 3
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- US National Toxicology Program reports
- Wikidata
- Wikipedia · English · Chinese