Methyl Red CAS NO.493-52-7

Methyl Red Basic information

Product Name:    Methyl Red
Synonyms:    CI NO 13020;BROMOCRESOL GREEN-METHYL RED;BROMOCRESOL GREEN-METHYL RED ETHANOL;BROMOCRESOL GREEN/METHYL RED, MIXED INDICATOR;BROMOCRESOL GREEN/METHYL RED, MIX INDICATOR FOR ALKALINITY;2-(4-Dimethylaminophenylazo)benzoic acid, 4-Dimethylaminoazobenzene-2μ-carboxylic acid, Acid Red2;METHYL RED;METHYL RED INDICATOR
CAS:    493-52-7
MF:    C15H15N3O2
MW:    269.3
EINECS:    207-776-1
Product Categories:   
Mol File:    493-52-7.mol
 

Methyl Red Chemical Properties
Melting point     179-182 °C (lit.)
Boiling point     412.44°C (rough estimate)
density     0.839 g/mL at 25 °C
vapor density     9.3 (vs air)
refractive index     1.5930 (estimate)
Fp     11 °C
storage temp.     −20°C
solubility     ethanol: soluble1mg/mL
Colour Index     13020
form     Solid
pka    4.95(at 25℃)
color     Reddish-violet
Odor    Odorless
PH Range    4.4(red)-6.3(yellow)
Water Solubility     Practically insoluble in water. Soluble in alcohol, acetic acidSoluble in ethanol. Insoluble in water.
λmax    410nm, 530nm, 427nm, 519nm
Merck     14,6119
BRN     750102
Stability:    Stable. Incompatible with strong oxidizing agents.
Major Application    Waveguides, LED sensors, photoresists, liquid crystals, sol-gel matrix, optical sensors, paints, toys, detection of thiols, food freshness sensors, dental product, saliva sampling method, detecting lactic acid, carbohydrates
InChIKey    CEQFOVLGLXCDCX-MSUUIHNZSA-N
CAS DataBase Reference    493-52-7
IARC    3 (Vol. 8, Sup 7) 1987
NIST Chemistry Reference    Benzoic acid, 2-[[4-(dimethylamino)phenyl]azo]-(493-52-7)
EPA Substance Registry System    Methyl red (493-52-7)

Safety Information
Hazard Codes     Xn,T,F,Xi,C,N
Risk Statements     10-20/21/22-68/20/21/22-68-36/38-23/25-11-36/37/38-34-51/53-39/23/24/25-23/24/25
Safety Statements     36/37-24/25-22-45-33-24-16-7-36-26-36/37/39-61
RIDADR     UN 1170 3/PG 2
WGK Germany     1
RTECS     DG8960000
TSCA     Yes
HazardClass     3
PackingGroup     II
HS Code     29270000
Hazardous Substances Data    493-52-7(Hazardous Substances Data)