1,4-phenylenediamine is a phenylenediamine in which the amino functions are at positions 1 and 4 of the benzene nucleus.
- Korean limit
- 2.0%
How much products actually contain
No product states its amount yet.
Of the products containing it, 5 list it before the 1% line and 1 after it (usually 1% or less).
Products using this ingredient
5 of 5 confirmed · likeliest to carry enough first
MiseensceneAll New Easy & Quick Bubble Hair Dye (Gray Coverage)
MiseensceneAll New Easy & Quick Cream Hair Dye (Gray Coverage/Root Touch-Up)
MiseensceneHello Cream Double Cover 120g Hair Dye (Mystic Black + 5 Other Shades)
PARKJUN BEAUTY LABSalon Root Cover Hair Color 300ml Jumbo (4 Colors)
MOREMO KeratinLow-Damage Hair Color Matte Deep Brown
Definition
1,4-phenylenediamine is a phenylenediamine in which the amino functions are at positions 1 and 4 of the benzene nucleus. It has a role as a reagent, a dye, an allergen and a hapten.
Source: PubChem
US FDA substance register · UNII U770QIT64J · registered name P-Phenylenediamine · single chemical substance
(CI 76060)
Cosmetic roles
Safety & regulatory references
- Banned
- Taiwan
- Restricted or banned
- South Korea · Taiwan
- Restricted
- Taiwan · United Kingdom
Source: Taiwan FDA cosmetic ingredients · MFDS (Korea) cosmetic regulatory information · ASEAN Cosmetic Directive · EU Cosmetics Regulation · Health Canada Cosmetic Ingredient Hotlist · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)
Argentina · Brazil
- Field of application and/or use : Oxidation dyes for coloring hairs 1. General Use 2. Professional Use
- Maximum concentration permitted at final product : 6% calculated as free base
- Use conditions and warnings that must appear on the label : 1) - Can cause allergic reaction - "Contains phenylenediamine" Contains phenylenediamines. Do not use on eyebrows or eyelashes. 2) Can cause allergic reaction Contains phenylenediamines. For professional use only. Wear suitable gloves
ASEAN
- Field of application and/or use : Hair dye substance in oxidative hair dye products Use for dyeing eyelashes and eyebrows is not permitted.
- Other limitations and requirements : After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2 % calculated as free base The direction for use “wear suitable gloves” must be included in label or leaflet text.
- Conditions of use and warning which must be printed on the labels : To be printed on the label: The mixing ratio “Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: - you have a rash on your face or sensitive, irritated and damaged scalp, - you have ever experienced any reaction after colouring your hair, - you have experienced a reaction to a temporary ‘black henna’ tattoo in the past. Contains phenylenediamines. Do not use to dye eyelashes or eyebrows.”
Canada
- Conditions of Use by product type : (a) Not permitted in products intended for use on the skin. (b) Oxidative hair dyes
- Maximum Concentration Permitted : (b) 3% after dilution with an oxidizer
- Warnings and Cautionary Statements: (to the effect of) : (b) On the inner label and the outer label of the cosmetic: "CAUTION: This product contains ingredients that may cause skin irritation on certain individuals and a preliminary test according to accompanying directions should first be made. This product must not be used for dying the eyelashes or eyebrows. To do so may cause blindness." Instructions to the following effect accompany each package of hair dye: 1. the preparation may cause serious inflammation of the skin in some persons and a preliminary test should always be carried out to determine whether or not special sensitivity exists; and 2. to make the test, a small area of skin behind the ear or on the inner surface of the forearm should be cleansed, using either soap and water or alcohol, and a small quantity of the hair dye as prepared for use should be applied to the area and allowed to dry. After 24 hours, the area should be washed gently with soap and water. If no irritation or inflammation is apparent, it is usually assumed that no hypersensitivity to the dye exists. The test should, however, be carried out before each application. On no account should the hair dye be used for dyeing eyebrows or eyelashes as severe inflammation of the eye or even blindness may result.
China
- Maximum concentration : 2%
European Union
- Restrictions Product Type, body parts : Hair dye substance in oxidative hair dye products
- Restrictions Other : (a) General use (b) Professional use For (a) and (b): After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 2 % calculated as free base
- Wording of conditions of use and warnings : (a) To be printed on the label: The mixing ratio. ‘ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna†tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary “black henna†tattoo in the past. Contains phenylenediamines. Do not use to dye eyelashes or eyebrows.’ (b) To be printed on the label: The mixing ratio. ‘For professional use only. Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna†tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary “black henna†tattoo in the past. Contains phenylenediamines. Wear suitable gloves.’
- Restrictions Product Type, body parts : Products intended for colouring eyelashes
- Restrictions Other : After mixing under oxidative conditions the maximum concentration applied to eyelashes must not exceed 2 % calculated as free base. For professional use only.
- Wording of conditions of use and warnings : To be printed on the label: The mixing ratio. “For professional use only. This product can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase the risk of allergy. Eyelashes shall not be coloured if the consumer: — has a rash on the face or sensitive, irritated and damaged scalp, — has experienced any reaction after colouring hair or eyelashes, — has experienced a reaction to a temporary ‘black henna’ tattoo in the past. Rinse eyes immediately if product comes into contact with them. Contains phenylenediamines. Wear suitable gloves.†’
Source: MFDS (Korea) cosmetic regulatory information
Korea’s toxic-substance GHS classification: Danger · H301 (category 3) · H410 (category 1) · H331 (category 3) · +4 more
Restriction III/8a
Source: EU CosIng ingredient list
Reviewed by CIR: Annual Review of Cosmetic Ingredient Safety Assessments - 2004/2005
Reviewed by CIR: Final Report: Amended Safety Assessment of p-Phenylenediamine, p-Phenylenediamine HCl and p-Phenylenediamine Sulfate as Used in Cosmetics
Reviewed by CIR: Final Amended Report on the Safety Assessment of p-Phenylenediamine, p-Phenylenediamine HCl and p-Phenlyenediamine Sulfate
Reviewed by CIR: Final Report on the Safety Assessment of p-Phenylenediamine
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 106-50-3
- EC No.EU chemical inventory number
- 203-404-7
- DTXSIDUS EPA chemical ID
- DTXSID9021138
- DTXCIDUS EPA compound ID
- DTXCID401138
- IUPAC
- Benzene-1,4-diamine
- Molecular formula
- C6H8N2
- Molecular weight
- 108.144 g/mol
Measured properties
- Appearance
- P-phenylenediamine appears as a white to purple crystalline solid (melting point 234 F) that turns purple to black in air. Flash point 309 F. Toxic by skin absorption, inhalation or ingestion. Used for production of aramid fiber, antioxidants, as a laboratory reagent, in photographic developing, and as a dye for hair and furs. · Large Crystals, Liquid
- Boiling point
- 513 °F at 760 mmHg (NTP, 1992) · 267 °C
- Melting point
- 284 °F (NTP, 1992) · 145-147 °C
- Solubility
- 4 % at 75 °F (NIOSH, 2024) · SOL IN 100 PARTS COLD WATER, SOL IN ALCOHOL, CHLOROFORM, ETHER
- Density
- Greater than 1 (water= 1) · Relative density (water = 1): 1.1
- Stability
- ON STANDING IN AIR, OXIDIZES TO PURPLE AND BLACK /COLOR/.
- Dissociation constant
- The pKa value of the conjugate acid is 6.2
- Melting/freezing point
- 142 ℃
- Initial boiling point and range
- 274 ℃
- Flash point
- 156 ℃(c.c.)
- Upper/lower flammability or explosive limits
- %
- Vapour pressure
- 144 ㎩ (100℃)
- Water solubility
- 4 g/100㎖
- Vapour density
- 3.7
- Relative density
- 1.1
- n-Octanol/water partition coefficient (Kow)
- -0.839 (21 °C)
- Auto-ignition temperature
- 400 ℃
- Molecular weight
- 108.14
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 9 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.
- Dye5
- Intermediate2
- Antioxidant1
- Hardener1
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
14 skin studies and 6 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 20 studies
- Skin Sens. 1
Skin Sensitization · Authoritative - Category 6.5B (Category 1)
Skin Sensitization · Read Across - Sh
Skin Sensitization · Authoritative - Skin Sens. 1
Skin Sensitization · Screening - Category 1A
Skin Sensitization · Screening - Category 2
Skin Irritation · Screening - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: EPA OPP 81-6 (Skin Sensitization) according to - High Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) according to other guideline: Directive 96/54/EEC,Part. B.6 (30 July 1996) - High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · according to EPA OPP 81-6 (Skin Sensitisation) - Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: company guideline previous to OECD guideline implementation that is similar to OECD 404 according to - High Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · equivalent or similar to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay) - High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to other guideline: Magnusson and Kligman (1970) and OECD 406 - High Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · equivalent or similar to other guideline: Basketter et al., 1991 and OECD 429 - High Frequency of Sensitization
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation) - Category 6.4A (Category 2A)
Eye Irritation · Read Across - Category 2B
Eye Irritation · Screening - Eye Irrit. 2
Eye Irritation · Screening - Eye Irrit. 2
Eye Irritation · Authoritative - Moderate or Mild Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to - Corrosive or Irritation Persists for > 21 days
eye irritation: in vivo · Screening · other guideline: FDA guideline Vol 38. Nr 187, p 27019, 1973 according to other guideline: Company guideline previous to OECD guideline implementation that is similar to OECD 405 according to
Source: US EPA CompTox dashboard
Related literature
- Is p-Phenylenediamine Still a Prevalent Contact Allergen in Spain? · 2020
- Is p-Phenylenediamine Still a Prevalent Contact Allergen in Spain? · 2020
- The effect of astaxanthin on allergic contact dermatitis in response to hair dye containing p-phenylenediamine · 2019
- p‐Phenylenediamine sensitization and occupation · 2011
- Tetramethyl‐p‐phenylenediamine · 2003
Linked databases 29
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU SCCS safety opinions 2 3
- Health Canada Cosmetic Ingredient Hotlist
- IARC carcinogen classification
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3 4
- NIST Chemistry WebBook
- PubChem 2
- Taiwan FDA cosmetic ingredients 2
- Taiwan FDA cosmetic regulations
- Tlooto literature search 2 3 4 5
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2 3 4 5
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Japanese · Chinese