Home Categories Organic Chemistry o-Cresol
A2323012

o-Cresol , StandardforGC,≥99.7%(GC) , 95-48-7

Synonym(s):
o-Cresol;o-Cresol solution;2-Hydroxytoluene, 2-Methylphenol;2-Methylphenol;o-Cresol

CAS NO.:95-48-7

Empirical Formula: C7H8O

Molecular Weight: 108.14

MDL number: MFCD00002226

EINECS: 202-423-8

Update time: 2022-07-08

PRODUCT Properties

Melting point: 29-31 °C (lit.)
Boiling point: 191 °C (lit.)
Density  1.048 g/mL at 25 °C
vapor density  3.72 (vs air)
vapor pressure  0.3 mm Hg ( 20 °C)
FEMA  3480 | O-CRESOL
refractive index  1.5361
Flash point: 178 °F
storage temp.  under inert gas
solubility  20g/l
form  Liquid or Low Melting Solid
pka 10.2(at 25℃)
color  white to brown
Odor at 0.01 % in dipropylene glycol. musty phenolic plastic medicinal herbal leathery
PH 4.8 (20g/l, H2O, 20℃)
explosive limit 1.47%, 148°F
Odor Threshold 0.00028ppm
Odor Type phenolic
Water Solubility  20 g/L (20 ºC)
Merck  14,2579
JECFA Number 691
BRN  506917
Henry's Law Constant 0.34 at 5.25 °C, 0.61 at 10.00 °C, 1.57 at 20.00 °C, 2.33 at 25.00 °C (dynamic equilibrium system- GC, Feigenbrugel et al., 2004a)
Exposure limits NIOSH REL: TWA 2.3 ppm (10 mg/m3), IDLH 250 ppm; OSHA PEL: TWA 5 ppm (22 mg/m3); ACGIH TLV: TWA for all isomers 5 ppm (adopted).
Dielectric constant 5.8(-5℃)
Stability: Stable, but light and air sensitive. Combustible. Incompatible with oxidizing agents, bases.
InChIKey QWVGKYWNOKOFNN-UHFFFAOYSA-N
LogP 1.95 at 20℃

Description and Uses

Disinfectant; phenolic resins; tricresyl phosphate; ore flotation; textile scouring agent; organic intermediate; manufacturing salicylaldehyde, coumarin, and herbicides; surfactant; synthetic food flavors (para isomer only); food antioxidant; dye, perfume, plastics, and resins manufacturing.

Safety

Symbol(GHS) 
GHS05,GHS06,GHS09
Signal word  Danger
Hazard statements  H301+H311-H314-H411
Precautionary statements  P260-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  T
Risk Statements  24/25-34-39/23/24/25-23/24/25
Safety Statements  36/37/39-45-36/37
RIDADR  UN 3455 6.1/PG 2
OEB B
OEL TWA: 2.3 ppm (10 mg/m3)
WGK Germany  1
RTECS  GO6300000
8-23
Autoignition Temperature 555 °C
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29071200
Toxicity LD50 orally in rats: 1.35 g/kg (Deichmann, Witherup)
IDLA 250 ppm

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