murphyMethyldibromo Glutaronitrile
AKA: 1, 2-Dibromo-2, 4-dicyanobutane, 35691-65-7, Bromothalonil, 2-BROMO-2-(BROMOMETHYL)PENTANEDINITRILE, Methyldibromoglutaronitrile, Tektamer 38, Tektamer, 2-Bromo-2-(bromomethyl)glutaronitrile
Synthetic
Preservative
Not Clean
OriginSynthesized from glutaronitrile and dibromine compounds through bromination reactions in controlled laboratory conditions. Produced via chemical synthesis involving the addition of bromine atoms to glutaronitrile precursor molecules.
2-bromo-2-(bromomethyl)pentanedinitrile
Solubility Very soluble in chloroform, ethyl acetate. Soluble in methanol, ethanol, ether.
Formula
C6H6Br2N2
Mol. Weight
265.93
CAS #
35691-65-7
Form
Powder
State
Crystals with a pungent odor. Insoluble in water. Used as a preservative in latex paint, adhesives, etc.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
Functions
Preservative
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Preserves Formula
Brightens Skin
Fights Bacteria
Reduces Inflammation
Prevents microbial growth
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
No
CIR Safety Findings
Not Phototoxic
Animal test found no phototoxicity in the CIR safety assessment (CIR 15)
Eye Irritant in Testing
2 studies / 2 irritating / reactions severe (CIR 15)
Mixed Skin Irritation Results
9 studies / 7 irritating / 2 not irritating / reactions slight to severe / plus 1 case report (CIR 15)
Mixed Sensitization Results
10 studies / 1 sensitizing / 1 mixed / 8 not sensitizing / plus 9 case reports (CIR 15)
Dermal Absorption 0.9–40%
8 results from animal / in vitro tests in the CIR safety assessment (CIR 15)
Concentration Guide
Leave-on0.012%
Rinse-off0.04%
0%50%100%
CIR reported use · 2011 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR