4-Methylaminophenol sulfate,
2 Inquiries
55-55-0
shanghai
drum
2026-10-21
Di-n-butyl naphthalene-2,6-dicarboxylate
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceWhite crystalline powder
Metol is contained in black-and-white film developers and caused contact dermatitis in photographers.
ChEBI: The sulfate salt of 4-methylaminophenol.
Off-white crystalline solid. Sensitive to light.
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.]Basic Info-
Product Name:
4-Methylaminophenol sulfate
Other Name:METOL(TM);BIS-(N-METHYL-4-HYDROXYANILINIUM) SULFATE;ARMOL;ELON;ECOL(R);GENOL;PHOTO-REX(R);PICTOL(TM)
CAS No.:55-55-0
Molecular Formula:C7H11NO5S
InChIKeys:ZVNPWFOVUDMGRP-UHFFFAOYSA-N
Molecular Weight:221.23
Exact Mass:221.035797
BRN:3919382
EC Number:200-237-1
NSC Number:148345
TSCA:TSCA listed
Color/Form:white to faintly beige
HScode:29222900
Categories:
Characteristics-
PSA:
115.24000
XLogP3:1.93490
Appearance:white to faintly beige Powder
Density:1.577
Melting Point:260 °C (dec.)(lit.)
Boiling Point:262.7ºC at 760 mmHg
Flash Point:148.6ºC
Refractive Index:1.6510 (estimate)
Water Solubility:50 g/L (20 ºC)
Storage Conditions:−20°C
PH:3.5-4.5 (20°C, 50g/L in H2O)
Air and 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.
Autoignition Temperature:989 °F
Critical Temperature & Pressure:−20°C
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 4, Oral
Skin sensitization, Category 1
Specific target organ toxicity â repeated exposure, Category 2
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H302 Harmful if swallowed
H317 May cause an allergic skin reaction
H373 May cause damage to organs through prolonged or repeated exposure
H410 Very toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
Response P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P333+P317 If skin irritation or rash occurs: Get medical help.
P321 Specific treatment (see ... on this label).
P362+P364 Take off contaminated clothing and wash it before reuse.
P319 Get medical help if you feel unwell.
P391 Collect spillage.
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from incompatible materials. See Chemical Dangers.
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Seller Information
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Business Type:
Trader
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Main Products:
Di-n-butyl naphthalene-2,6-dicarboxylate
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Location:
1208# HuaCe Building-B,Wuchanggang Road,XIHU District,Hangzhou City,Zhejiang Province ,China
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Payment Terms:
TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
15 days
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Total Annual Revenue:
$5 million-$10 million
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Total Employees:
5-10
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Year of Establishment:
2023
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Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
United Kingdom
metol
25 KG Jan 2, 2024 
New Zealand
4-Methylaminophenol sulfate
100 KG Sep 20, 2026 Post an enquiry for this product
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