murphy4-Methoxy-m-Phenylenediamine Sulfate
AKA: 2, 4-DIAMINOANISOLE SULFATE, 39156-41-7, Pelagol Grey, Durafur Brown MN, Furro SLA, Ursol SLA, Pelagol Grey SLA, Nako TSA, BASF Ursol SLA, Fouramine BA
Synthetic
Cleanser
Not Clean
OriginSynthesized from phenylenediamine precursors and methoxy chemical compounds within the aromatic amine family. Produced through methylation and sulfation reactions of m-phenylenediamine base structures.
2,4-Diaminoanisole Sulfate is a synthetic, off-white to violet solid that is soluble in water and ethanol. It is used primarily as a component of oxidizing 'permanent' hair- and fur-dye formulations. 2,4-Diaminoanisole sulfate is also used as an intermediate in the production of C.I. Basic Brown 2, a dye commonly used in numerous consumer products. The primary routes of potential human exposure to 2,4-diaminoanisole sulfate are dermal contact and inhalation. It is reasonably anticipated to be a human carcinogen. (NCI05)
Solubility 10 to 50 mg/mL at 65.3 °F (NTP, 1992)
Formula
C7H12N2O5S
Mol. Weight
236.25
CAS #
39156-41-7
Form
Powder
State
2,4-diaminoanisole sulfate appears as off-white to violet or dark brown powder. Emits toxic fumes of nitrogen oxides and sulfur oxides when heated to decomposition.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
Allergen Warning
⚠️ PPD (Hair Dye)
Functions
Surfactant
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR