4-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”

Ingredient

Ingredient Facts

4-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

Ingredient · Cleansing · EWG: 4

Synthetic

Cleanser

Not Clean

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.

See origin →

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.

Traditional Use

A synthetic hair dye intermediate developed in the 20th century. The sulfate salt form was engineered for improved solubility and stability in permanent hair color products.