4-Methylaminophenol sulfate
- CAS No.
- 55-55-0
- Chemical Name:
- 4-Methylaminophenol sulfate
- Synonyms
- METHOL;METOL;P-METHYLAMINOPHENOL SULFATE;P-METHYLAMINOPHENOL SULPHATE;verol;Motol;photol;n-methyl-p-aminophenol;4-(METHYLAMINO)PHENOL HEMISULFATE SALT;ELON
- CBNumber:
- CB4737544
- Molecular Formula:
- C7H11NO5S
- Molecular Weight:
- 221.23
- MDL Number:
- MFCD00013140
- MOL File:
- 55-55-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 4-(Methylamino)phenol hemisulfate salt ACS reagent, 99% | 320013 | 100g | $41.6 |
| ECOL™ ≥98% (HPLC) | 15501 | 100g | $57 |
| 4-(Methylamino)phenol hemisulfate salt ACS reagent, 99% | 320013 | 500g | $168 |
| ECOL™ ≥98% (HPLC) | 15501 | 1kg | $278 |
| ECOL™ ≥98% (HPLC) | 15501 | 25KG | $5940 |
| More product size | |||
| Melting point | 260 °C (dec.)(lit.) |
|---|---|
| Density | 1.577 |
| refractive index | 1.6510 (estimate) |
| storage temp. | −20°C |
| solubility | H2O: 50 mg/mL, clear |
| form | Powder |
| color | white to faintly beige |
| PH | 3.5-4.5 (20°C, 50g/L in H2O) |
| Water Solubility | 50 g/L (20 ºC) |
| Sensitive | Air Sensitive |
| Merck | 14,6017 |
| BRN | 3919382 |
| Stability | Stability Combustible. Incompatible with strong oxidizing agents, acids, acid halides. |
| InChI | 1S/2C7H9NO.H2O4S/c2*1-8-6-2-4-7(9)5-3-6;1-5(2,3)4/h2*2-5,8-9H,1H3;(H2,1,2,3,4) |
| InChIKey | ZVNPWFOVUDMGRP-UHFFFAOYSA-N |
| SMILES | OS(O)(=O)=O.CNc1ccc(O)cc1.CNc2ccc(O)cc2 |
| CAS DataBase Reference | 55-55-0(CAS DataBase Reference) |
| EWG's Food Scores | 3-5 |
| FDA UNII | D3W0VWG12M |
| EPA Substance Registry System | p-Methylaminophenol sulfate (55-55-0) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS07,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H317-H373-H410 | |||||||||
| Precautionary statements | P273-P280-P301+P312+P330-P302+P352-P314 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | Xn,N | |||||||||
| Risk Statements | 22-43-48/22-50/53 | |||||||||
| Safety Statements | 36/37-46-60-61 | |||||||||
| RIDADR | UN 3077 9/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SL8650000 | |||||||||
| F | 8 | |||||||||
| Autoignition Temperature | 989 °F | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29222900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 1 Skin Sens. 1 STOT RE 2 |
|||||||||
| REACH Registrations | Inactive | |||||||||
| Limited Quantities | 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
4-Methylaminophenol sulfate price More Price(66)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 320013 | 4-(Methylamino)phenol hemisulfate salt ACS reagent, 99% | 55-55-0 | 100g | $41.6 | 2026-04-30 | Buy |
| Sigma-Aldrich | 15501 | ECOL™ ≥98% (HPLC) | 55-55-0 | 100g | $57 | 2026-04-30 | Buy |
| Sigma-Aldrich | 320013 | 4-(Methylamino)phenol hemisulfate salt ACS reagent, 99% | 55-55-0 | 500g | $168 | 2026-04-30 | Buy |
| Sigma-Aldrich | 15501 | ECOL™ ≥98% (HPLC) | 55-55-0 | 1kg | $278 | 2026-04-30 | Buy |
| Sigma-Aldrich | 15501 | ECOL™ ≥98% (HPLC) | 55-55-0 | 25KG | $5940 | 2026-04-30 | Buy |
4-Methylaminophenol sulfate Chemical Properties,Uses,Production
Description
Metol is contained in black-and-white film developers and caused contact dermatitis in photographers.
Chemical Properties
White crystalline powder
Uses
Photographic developer; dyeing furs.
Uses
Metol is a black-and-white photographic developer; dyeing furs; as pigment in hair dyes.
Uses
4-(Methylamino)phenol sulfate is a photographic developer used in black and white photography. It is also used as tone developers in developing agents. Further, it is used in oxidative hair dye formulations.
Uses
4-methylaminophenol sulfate is used as a photographic developer and fur dye.
Definition
ChEBI: The sulfate salt of 4-methylaminophenol.
General Description
Off-white crystalline solid. Sensitive to light.
Air & Water Reactions
Water soluble.
Reactivity Profile
In aqueous solution behaves as an acid. Materials in this group are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
Hazard
Eye and skin irritant.
Fire Hazard
Flash point data for 4-Methylaminophenol sulfate are not available but 4-Methylaminophenol sulfate is probably combustible.
Contact allergens
Metol is contained in black and white film developers and caused contact dermatitis in photographers.
Purification Methods
Crystallise this photographic developer from H2O (needles m 250-260o) (its solubility is 5% at 20o and 17% at 100o) or MeOH. It is used for determining Ag. [Palit et al. Indian J Chem, Sect B 28 64 1989.]
4-Methylaminophenol sulfate Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5224 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-86-17392712779 +8617792793228 | 1069@dideu.com | China | 8661 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6366 | 58 |
| Shanghai Longyu Biotechnology Co., Ltd. | info@longyupharma.com | China | 2423 | 58 | |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 +86-17392581500 | 1015@dideu.com | China | 3991 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
View Lastest Price from 4-Methylaminophenol sulfate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-09 | 4-Methylaminophenol sulfate
55-55-0
|
1KG | 98.0% | 5000kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-06-05 | 4-Methylaminophenol sulfate
55-55-0
|
$1.50 | 1g | 99.0% Min | 100 Tons | Shaanxi Didu New Materials Co. Ltd | |
 |
2026-05-28 | 4-Methylaminophenol sulfate
55-55-0
|
$8.60 | 1KG | 99% | 5000kg | Hebei Chuanghai Biotechnology Co,.LTD |
-
- 4-Methylaminophenol sulfate
55-55-0
- $0.00
- 98.0%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 4-Methylaminophenol sulfate
55-55-0
- $1.50
- 99.0% Min
- Shaanxi Didu New Materials Co. Ltd
-
- 4-Methylaminophenol sulfate
55-55-0
- $8.60
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
