Molekula
2-Methyl-1,4-phenylenediamine sulfate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
2-Methyl-1,4-phenylenediamine sulfate (CAS 615-50-9) is a chemical intermediate primarily used in the synthesis of dyes, pigments, and hair coloring agents. It serves as a key building block in organic chemistry for producing azo dyes and other colorants. This compound has a molecular formula of C7H12N2O4S with a molecular weight of 220.25 g/mol. It is stored at ambient conditions and classified with a signal word of "Danger." Molekula supplies 2-Methyl-1,4-phenylenediamine sulfate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
10 g — £37.20 per pack ex VAT · £44.64 inc. VAT
-
25 g — £66.30 per pack ex VAT · £79.56 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Off white to light pink or purple or red solid or powder |
| Identification | Conforms to reference |
| Assay | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Grey to white powder |
| Melting Point | 40.6 °C |
| Density | 1.366 g/cm³ at 20 °C |
| Water Solubility | 5.03 g/L at 20 °C |
| Solubility (other solvents) | Soluble in water and ethanol |
| pKa | pKa1 = 6.39 |
| log P (octanol/water) | 0.74 |
Source: PubChem CID 22856 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 37349636 |
| CAS Number | 615-50-9 |
| IUPAC Name | 2-methylbenzene-1,4-diamine;sulfuric acid |
| EC Number | 228-871-4 |
| Molecular Formula | C7H12N2O4S |
| Molecular Weight | 220.25 |
| Exact Mass | 220.0518 |
| SMILES | CC1=C(C=CC(=C1)N)N.OS(=O)(=O)O |
| InChIKey | KZTWOUOZKZQDMN-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H10N2.H2O4S/c1-5-4-6(8)2-3-7(5)9;1-5(2,3)4/h2-4H,8-9H2,1H3;(H2,1,2,3,4) |
| PubChem CID | 22856 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29215110 |
| Tariff Code | 2921511930 |
Safety & GHS
-
Toxic
GHS06
-
Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H312 Harmful in contact with skin
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H332 Harmful if inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2-Methyl-1,4-benzenediamine sulfate
- 2,5-Diaminotoluene sulfate
- C.I. Oxidation Base 4
- CI 76043
- Fouramine STD
- p-Toluylenediamine sulfate
- para-Toluenediamine sulphate
- para-Toluylenediamine sulphate
- Rodol BLFX
- Toluene-2,5-diamine sulfate
Frequently asked questions
What is 2-Methyl-1,4-phenylenediamine sulfate commonly used for?
It is primarily used as a hair dye intermediate, particularly in the formulation of oxidative hair dyes, and as a monomer in the synthesis of polymers.
What is the molecular formula and molecular weight of this compound?
The molecular formula is **C7H12N2O4S**, and the molecular weight is **220.25 g/mol**.
What safety classification does this product have?
The product is classified with the **Signal Word: Danger** due to its hazardous properties.
How should 2-Methyl-1,4-phenylenediamine sulfate be stored?
Store in a cool, dry place at **ambient temperature**, away from incompatible substances and moisture.
Does Molekula supply this compound in bulk quantities?
Yes, we can supply this product in bulk, with quantities tailored to your requirements—please contact us for details.
What documentation is provided with an order of this chemical?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.