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4-Hydroxybenzoic Acid

Catalog Number
ACM99967
CAS Number
99-96-7
Product Name
4-Hydroxybenzoic Acid
Structure
Category
Liquid Crystal (LC) Building Blocks
Synonyms
p-Hydroxybenzoic
Description
PelletsLargeCrystals;Solid;Solid;White crystalline powder; faint nutty odour
IUPAC Name
4-Hydroxybenzoic acid
Molecular Weight
138.12
Molecular Formula
C7H6O3
Canonical SMILES
C1=CC(=CC=C1C(=O)O)O
InChI
InChI=1S/C7H6O3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H,(H,9,10)
InChI Key
FJKROLUGYXJWQN-UHFFFAOYSA-N
Melting Point
213-217 °C (lit.)
Flash Point
199°C
Purity
98%
Density
1.46 g/ml
Solubility
0.04 M;5 mg/mL at 25 °C;Solubility (in 100 g of solution): 99% ethanol 38.75 g (67 °C); n-butanol 19.5 g (32.5 °C);Soluble in about 125 parts water, freely in alcohol, slightly in chloroform; soluble in ether, acetone. Practically insoluble in carbon disulfide.;In water, 5000 mg/L at 25 °C;5.0 mg/mL;slightly soluble in water; soluble in organic solvents;freely soluble (in ethanol)
Appearance
Solid
Assay
0.9999
Color/Form
White granular crystalline powder consisting of monoclinic prisms
Complexity
125
Covalently-Bonded Unit Count
1
EC Number
202-804-9
Exact Mass
138.031694g/mol
Formal Charge
0
Heavy Atom Count
10
Log P
1.58 (LogP);1.58;log Kow=1.58;1.58
MDL Number
MFCD00002547
MeSH Entry Terms
4-hydroxybenzoate;4-hydroxybenzoic acid;4-hydroxybenzoic acid, calcium salt;4-hydroxybenzoic acid, copper(2+)(1:1) salt;4-hydroxybenzoic acid, dilithium salt;4-hydroxybenzoic acid, dipotassium salt;4-hydroxybenzoic acid, disodium salt;4-hydroxybenzoic acid, monopotassium salt;4-hydroxybenzoic acid, monosodium salt;4-hydroxybenzoic acid, monosodium salt, 11C-labeled;p-hydroxybenzoate;para-hydroxybenzoic acid;sodium p-hydroxybenzoate tetrahydrate
Monoisotopic Mass
138.031694g/mol
NSC Number
4961
Other Experimental
Henry's Law constant= 7.2X10-12 atm-cu m/mole at 25 °C /Estimated/;Hydroxyl radical reaction rate constant= 1.3X10-11 cu cm/molecule-sec at 25 °C /Estimated/
Packaging
1 kg
pH
3.3 (1g/L, H₂O)
Refractive Index
1.53
Rotatable Bond Count
1
Stability
Stable under normal temperatures and pressures.
Storage Conditions
Store in a cool, dry place. Keep container closed when not in use.
UNII
JG8Z55Y12H
Vapor Pressure
1.92e-07 mmHg;1.9X10-7 mm Hg at 25 °C /Extrapolated/
XLogP3
1.6
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