A2324312
p-Cresol , StandardforGC,≥99.7%(GC) , 106-44-5
Synonym(s):
p-Cresol;4-Methylphenol;4-Methylphenol solution;p-Cresol;p-Cresol solution
CAS NO.：106-44-5
Empirical Formula: C7H8O
Molecular Weight: 108.14
MDL number: MFCD00002376
EINECS: 203-398-6
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 32-34 °C(lit.) |
| Boiling point: | 202 °C(lit.) |
| Density | 1.034 g/mL at 25 °C(lit.) |
| vapor density | 3.72 (vs air) |
| vapor pressure | 1 mm Hg ( 20 °C) |
| FEMA | 2337 | P-CRESOL |
| refractive index | nD20 1.5395 |
| Flash point: | 193 °F |
| storage temp. | Store below +30°C. |
| solubility | 20g/l |
| pka | 10.17(at 25℃) |
| form | Crystalline Solid or Liquid |
| Specific Gravity | 1.0341 (20/4℃) |
| color | Colorless to light yellow, may darken on exposure to light |
| Odor | at 0.10 % in dipropylene glycol. phenolic narcissus animal mimosa |
| Odor Type | phenolic |
| Odor Threshold | 0.000054ppm |
| explosive limit | 1%(V) |
| Water Solubility | 20 g/L (20 ºC) |
| Sensitive | Light Sensitive |
| JECFA Number | 693 |
| Merck | 14,2579 |
| BRN | 1305151 |
| Henry's Law Constant | 6.17 at 20.00 °C, 9.31 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 | 5.6（21.0℃） |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. Air and light-sensitive. Hygroscopic. |
| LogP | 1.94 |
| CAS DataBase Reference | 106-44-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenol, 4-methyl-(106-44-5) |
| EPA Substance Registry System | p-Cresol (106-44-5) |
Description and Uses
p-Cresol is utilized in the production of artificial resins, liquid crystal intermediates, disinfectants, fumigants, and as an industrial solvent. It is also involved in the manufacturing of Bupranolol, a non-selective beta blocker.
Safety
| Symbol(GHS) |   GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H301+H311-H314 |
| Precautionary statements | P260-P270-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | T,Xi |
| Risk Statements | 24/25-34-39/23/24/25-23/24/25 |
| Safety Statements | 36/37/39-45-36/37 |
| OEB | B |
| OEL | TWA: 2.3 ppm (10 mg/m3) |
| RIDADR | UN 3455 6.1/PG 2 |
| WGK Germany | 1 |
| RTECS | GO6475000 |
| F | 8 |
| Autoignition Temperature | 555 °C |
| Hazard Note | Irritant |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | II |
| HS Code | 29071200 |
| Hazardous Substances Data | 106-44-5(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1.8 g/kg (Deichmann, Witherup) |
