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Metol

Metol structure

CAS No:
55-55-0
Formula:
C7H9NO.¹/2H2O4S
Chemical Name:
Metol
Synonyms:
Phenol,4-(methylamino)-,sulfate (2:1);Phenol,p-(methylamino)-,sulfate (2:1) (salt);Phenol,4-(methylamino)-,sulfate (2:1) (salt);Armol;Elon;Genol;Graphol;p-Methylaminophenol sulphate (2:1);Metol;Photol;Pictol;Planetol;Rhodol;Metatyl;N-Methyl-p-aminophenol sulfate;p-Methylaminophenol sulfate;4-(Methylamino)phenol sulfate (2:1) salt;N-Methyl-4-hydroxyaniline hemisulfate;Elon (developer);N-Methyl-p-aminophenol sulfuric acid salt (2:1);N-Methyl-p-aminophenol sulfuric acid hemisalt;4-(Methylamino)phenol hemisulfate;160976-13-6
Categories:
Analytical Chemistry > Standard

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Description

White crystalline powder

Metol Basic Attributes

Molecular Weight：

221.23

Exact Mass：

221.035797

BRN：

3919382

EC Number：

200-237-1

NSC Number：

148345

HScode：

29222900

Characteristics

PSA：

115.24000

XLogP3：

1.93490

Appearance：

white to faintly beige Powder

Density：

1.577

Melting Point：

260 °C (decomp)

Boiling Point：

262.7ºC at 760 mmHg

Flash Point：

148.6ºC

Water Solubility：

H2O: 50 g/L (20 ºC)

Storage Conditions：

−20°C

Safety Information

Packing level：

III

Hazard category：

6.1

Transport codes：

UN 3077 9/PG 3

wgk germany：

hazard class code：

22-43-48/22-50/53

safety instructions：

36/37-46-60-61

RTECS Number：

SL8650000

Marks：

Xn,N

Stability/Shelf Life：

Stability Combustible. Incompatible with strong oxidizing agents, acids, acid halides.

Precautionary statement(s)：

P260-P280-P301 + P312 + P330

Hazard Statements：

H302-H317-H373-H410

GHS Classification：

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P260, P261, P264, P270, P272, P273, P280, P301+P312, P302+P352, P314, P321, P330, P333+P313, P363, P391, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Metol Use and Manufacturing

Methods of Manufacturing

P-aminophenol can be prepared by methylation or hydroquinone and methylamine reaction to produce methylaminophenol ([150-75-4]), and then by salt formation.

Uses

Photographic developer; dyeing furs.

Computed Properties

Molecular Weight:221.23
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:1
Exact Mass:221.03579362
Monoisotopic Mass:221.03579362
Topological Polar Surface Area:115
Heavy Atom Count:14
Complexity:158
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes

Material

4-Aminophenol

Dimethyl sulfate

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