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4-Methylaminophenol sulfate

4-Methylaminophenol sulfate Structure
4-Methylaminophenol sulfate structure
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
Last updated:2026-06-04 18:03:49
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4-Methylaminophenol sulfate Properties

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)  Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
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
1
2 1

4-Methylaminophenol sulfate price More Price(62)

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
Product number Packaging Price Buy
320013 100g $41.6 Buy
15501 100g $57 Buy
320013 500g $168 Buy
15501 1kg $278 Buy
15501 25KG $5940 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 synthesis

51-78-5
77-78-1
55-55-0
Synthesis of 4-Methylaminophenol sulfate from 4-Hydroxyaniline hydrochloride and Dimethyl sulfate

4-Methylaminophenol sulfate Preparation Products And Raw materials

Raw materials

4-Aminophenol Benzene

Preparation Products

4-Methylaminophenol sulfate Suppliers

Global( 417)Suppliers
Supplier Tel Email Country ProdList Advantage
Changsha Changtang Import and Export Co., LTD 18942506900 18942506900 492657010@qq.com China 993 58
Shanghai Taijilin Industrial Co., Ltd. 02150630626 17717886015 kate@tajilin.com China 1340 58
Shijiazhuang Ruitian Biochemical Co. Ltd 15831127780 52714113@qq.com China 2354 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
future industrial shanghai co., ltd 400-0066400 13621662912 sales@jonln.com China 1989 65
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078 sales@jingyan-chemical.com China 9963 60
Winchem Industrial Co. Ltd 0574-83851061 info@win-chemical.com China 500 55
Supplier Advantage
Changsha Changtang Import and Export Co., LTD 58
Shanghai Taijilin Industrial Co., Ltd. 58
Shijiazhuang Ruitian Biochemical Co. Ltd 58
J & K SCIENTIFIC LTD. 76
future industrial shanghai co., ltd 65
Alfa Aesar 84
TCI (Shanghai) Development Co., Ltd. 81
Energy Chemical 61
JinYan Chemicals(ShangHai) Co.,Ltd. 60
Winchem Industrial Co. Ltd 55

View Lastest Price from 4-Methylaminophenol sulfate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Methylaminophenol sulfate pictures 2026-09-10 4-Methylaminophenol sulfate
55-55-0
 1KG 98.0% 5000kg/month WUHAN FORTUNA CHEMICAL CO., LTD
4-Methylaminophenol sulfate pictures 2026-06-05 4-Methylaminophenol sulfate
55-55-0
 $1.50 1g 99.0% Min 100 Tons Shaanxi Didu New Materials Co. Ltd
4-Methylaminophenol sulfate pictures 2026-05-28 4-Methylaminophenol sulfate
55-55-0
 $8.60 1KG 99% 5000kg Hebei Chuanghai Biotechnology Co,.LTD

4-Methylaminophenol sulfate Spectrum

4-Methylaminophenol sulfate(55-55-0)MS4-Methylaminophenol sulfate(55-55-0)1HNMR4-Methylaminophenol sulfate(55-55-0)IR14-Methylaminophenol sulfate(55-55-0)IR24-Methylaminophenol sulfate(55-55-0)Raman

55-55-0(4-Methylaminophenol sulfate)Related Search:

Acetaminophen D-Glucosamine sulfate Barium sulfate Vanadyl sulfate Ammonium sulfate
Magnesium sulfate heptahydrate Sodium sulfate Aluminum sulfate Zinc sulfate heptahydrate 3-Aminophenol
4-Aminophenol 2-Aminophenol sulfate 4-Aminophenol sulfate 4-(Methylamino)phenol
METOL 4-Methylaminophenol sulfate METOL PHOTO GRADE

1of4

METOL(TM) BIS-(N-METHYL-4-HYDROXYANILINIUM) SULFATE ARMOL ELON ECOL(R) GENOL PHOTO-REX(R) PICTOL(TM) P-HYDROXYMETHYLANILINE SULFATE PLANETOL n-methyl-p-aminophenol N-Methyl-p-aminophenolsulfate 4-METHYLAMINO-PHENOL HEMISULFATE 4-(METHYLAMINO)PHENOL SULFATE 4-(METHYLAMINO)PHENOL SULPHATE bis(4-hydroxy-N-methylanilinium) sulphate METOLMIN (4-MethylaMino phenol sulfate 4-METHYLAMINOPHENOL HEMISULFATE*PHOTOGRA PHIC GRADE METOL, FOR PHOTOGRAPHIC PURPOSES METOL, PHOSPHATE REAGENT ACS 4-(METHYLAMINO)PHENOL SULFATE, 99%, A.C. S. REAGENT ECOL BIS-(4-METHYLAMINOPHENOL) SULFATE Metol(ForPhotographicPurpose) 4-MethylaminophenolSulphate,>97.5% 4-Methylaminophenolsulfate,99% p-(methylamino)-phenosulfate(2:1)(salt) Phenol,4-(methylamino)-,sulfate(2:1)(salt) pictol Bis(4-hydroxy-N-methylanilinium) sulphate~Metol 4-(METHYLAMINO)PHENOL SULFATE REAGENT (ACS) 4-(methylamino)phenol sulfate, acs bis(4-hydroxy-n-methylanilinium) sulfate ρ-methylamophenolsulphate PARA-METHYLAMINOPHENOLSULPHATE 4-N-METHYLAMINOPHENOLSULPHATE METOL4 N-METHYL-PARA-AMINOPHENOLSULPHATE Bis(4-hydroxy-N-methylanilinium)-sulfat p-methylamino-pheno sulfate METOL (4-METHYLAMINOPHENOL SULFATE) N-methylaminophenol sulfate METOL extrapure 4-(Methylamino)phenol hemisulfate salt, Metol N-METHYL-4-AMINOPHENOL SULFATE 4-(METHYLAMINO)PHENOL SULPHATE / METOL 4-(METHYLAMINO)PHENOL SULFATE, ACS, 99.0-101.5% 4-(Methylamino)phenol sulfate (2:1 salt) 4-(METHYLAMINO)PHENOL SULFATE, REAGENT (ACS)4-(METHYLAMINO)PHENOL SULFATE, REAGENT (ACS)4-(METHYLAMINO)PHENOL SULFATE, REAGENT (ACS) N-(2-oxolanylmethyl)-1-butanamine Motol, AR,99.0% 4-Methylaminophenol sulfate, synthesis grade 4-(MethylaMino)phenol Sulfate, Reagent 4-MethylaMinophenol sulfate, 99% 5GR 4-MethylaMinophenol sulfate, ACS reagent 4-(methylamino)-phenosulfate(2:1)(salt) N-Methyl-4-hydroxyaniline hemisulfate Bis(p-methylaminophenol)sulfate elon(developer)