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Merck

8.09692

o-Cresol

for synthesis

Synonym(s):

o-Cresol, 2-Hydroxytoluene, 2-Methylphenol

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About This Item

Linear Formula:
2-(CH3)C6H4OH
CAS Number:
Molecular Weight:
108.14
UNSPSC Code:
12352104
EC Index Number:
202-423-8
NACRES:
NA.22
MDL number:
Assay:
≥99% (GC)
Grade:
synthesis grade
Bp:
191-192 °C/1013 hPa
Vapor pressure:
0.24 hPa ( 20 °C)
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grade

synthesis grade

Quality Level

vapor pressure

0.24 hPa ( 20 °C)

assay

≥99% (GC)

form

solid

autoignition temp.

555 °C

potency

121 mg/kg LD50, oral (Rat), 890 mg/kg LD50, skin (Rabbit)

expl. lim.

1.3 % (v/v)

dilution

(for synthesis)

pH

4.8 (20 °C, 20 g/L in H2O)

bp

191-192 °C/1013 hPa

mp

31 °C

transition temp

flash point 81 °C

solubility

20 g/L

density

1.046 g/cm3 at 20 °C

storage temp.

no temp limit

SMILES string

Oc1c(cccc1)C

InChI

1S/C7H8O/c1-6-4-2-3-5-7(6)8/h2-5,8H,1H3

InChI key

QWVGKYWNOKOFNN-UHFFFAOYSA-N

Application

o-Cresol can be used as a starting material to synthesize:
  • Carvacrol by alkylation reaction with propylene or isopropyl alcohol in the presence of Zr/mesoporous silica as a catalyst.
  • Polyisobutylenes by selective cationic polymerization of isobutylene using AlCl3 as a catalyst.
  • Poly(o-cresol) via oxidative coupling polymerization reaction in the presence of substituted pyridine/CuCl catalysts.

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 29 °C
Melting range (upper value): ≤ 33 °C
Water (K. F.): ≤ 0.10 %
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.


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pictograms

Skull and crossbonesCorrosion

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 2

flash_point_f

177.8 °F - closed cup

flash_point_c

81.0 °C - closed cup


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified



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