55-55-0

Name 4-Methylaminophenol sulfate
CAS 55-55-0
EINECS(EC#) 200-237-1
Molecular Formula C7H11NO5S
MDL Number MFCD00013140
Molecular Weight 221.23
MOL File 55-55-0.mol

Chemical Properties

Appearance White crystalline powder
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)
Stability: Stability Combustible. Incompatible with strong oxidizing agents, acids, acid halides.
Water Solubility  50 g/L (20 ºC)
Sensitive  Air Sensitive
Merck  14,6017
BRN  3919382
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)
Contact allergens
Metol is contained in black and white film developers and caused contact dermatitis in photographers.
InChIKey ZVNPWFOVUDMGRP-UHFFFAOYSA-N
SMILES OS(O)(=O)=O.CNc1ccc(O)cc1.CNc2ccc(O)cc2
CAS DataBase Reference 55-55-0(CAS DataBase Reference)
EPA Substance Registry System 55-55-0(EPA Substance)

Safety Data

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
Hazard Codes  Xn,N
Risk Statements 
R22:Harmful if swallowed.
R43:May cause sensitization by skin contact.
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S36/37:Wear suitable protective clothing and gloves .
S46:If swallowed, seek medical advice immediately and show this container or label .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  SL8650000
8
Autoignition Temperature 989 °F
TSCA  Yes
REACH Registrations Inactive
HazardClass  6.1
PackingGroup  III
HS Code  29222990
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Acute 1
Aquatic Chronic 1
Skin Sens. 1
STOT RE 2
Hazardous Substances Data 55-55-0(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

Material Safety Data Sheet(MSDS)

Supplier