Chemical Properties of 1,2-Benzenediol, 4-methyl- (CAS 452-86-8)

1,2-Benzenediol, 4-methyl-

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InChI Key
Molecular Weight1
Other Names
  • 1,2-Dihydroxy-4-methylbenzene
  • 1-Methyl-3,4-dihydroxybenzene
  • 2-Hydroxy-4-methylphenol
  • 3,4-Dihydroxytoluene
  • 4-Methyl-1,2-benzenediol
  • 4-Methyl-1,2-benzenediol (4-methylpyrocatechol)
  • 4-Methyl-1,2-dihydroxybenzene
  • 4-Methylbenzene-1,2-diol
  • 4-Methylcatechol
  • 4-Methylpyrocatechol
  • Homocatechol
  • Homopyrocatechol
  • NSC 17489
  • Pyrocatechol, 4-methyl-
  • Toluene-3,4-diol
  • p-Methylcatechol
  • p-Methylpyrocatechol

Physical Properties

Property Value Unit Source
Δcsolid -3504.60 ± 0.60 kJ/mol NIST
Δf -188.77 kJ/mol Joback Calculated Property
Δfgas -298.40 ± 1.60 kJ/mol NIST
Δfsolid -393.30 ± 1.20 kJ/mol NIST
Δfus 19.49 kJ/mol Joback Calculated Property
Δsub 94.90 ± 1.00 kJ/mol NIST
Δsub 94.90 ± 1.00 kJ/mol NIST
Δsub 94.90 kJ/mol NIST
Δvap 59.48 kJ/mol Joback Calculated Property
logPoct/wat 1.406 Crippen Calculated Property
Pc 6288.83 kPa Joback Calculated Property
Tboil 524.20 K NIST
Tc 790.85 K Joback Calculated Property
Tfus 418.51 K Joback Calculated Property
Vc 0.252 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 226.69 J/mol×K 547.48 Joback Calculated Property
η 0.0000153 Pa×s 547.48 Joback Calculated Property
ΔvapH 90.00 kJ/mol 401.0 NIST

Molecular Descriptors

Joback and Reid Groups
=C< (ring) 3
-CH3 1
-OH (phenol) 2
=CH- (ring) 3

Similar Compounds

4-Ethylcatechol. 3,4-Dihydroxybenzaldehyde. 1,2-Benzenediol, 3-methyl-. 2-Methoxy-5-methylphenol. 3-Me-phenoxy. Phenol, 3-methyl-. 3-OH-benzyl. Phenol, 2-methoxy-4-methyl-. 3,5-Dihydroxytoluene. 3,5-dihydroxytoluene, monohydrate. Hydroxy chavicol. Phenol, 3,4-dimethyl-. Dopamine. 4-(2-Aminoethyl)catechol, hydrochloride. Benzene, 1,2-dimethoxy-4-methyl-.

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