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Methylparaben

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Identification
Molecular formula
C8H8O3
CAS number
99-76-3
IUPAC name
methyl 4-hydroxybenzoate
State
State

At room temperature, methylparaben is typically found in a solid state.

Melting point (Celsius)
125.00
Melting point (Kelvin)
398.00
Boiling point (Celsius)
275.00
Boiling point (Kelvin)
548.00
General information
Molecular weight
152.15g/mol
Molar mass
152.1490g/mol
Density
1.4600g/cm3
Appearence

Methylparaben appears as a white to off-white crystalline powder with no distinct odor.

Comment on solubility

Solubility of Methyl 4-Hydroxybenzoate

Methyl 4-hydroxybenzoate, commonly known as methyl paraben, exhibits interesting solubility characteristics that influence its applications across various fields.

In terms of solubility, it can be observed that:

  • Solvent Specificity: Methyl 4-hydroxybenzoate displays a higher solubility in organic solvents such as ethanol and acetone, compared to its solubility in water.
  • Temperature Dependency: The solubility tends to increase with an increase in temperature, making higher temperatures favorable for dissolving this compound in solvents.
  • pH Levels: The solubility can also be affected by the pH of the solution, as the presence of hydroxyl groups can lead to a change in solubility based on the ionization state.

Generally speaking, methyl 4-hydroxybenzoate is considered to be moderately soluble in water, typically ranging from 0.1 to 1 g/100 mL at room temperature. This solubility profile allows it to be effectively utilized as a preservative in cosmetics and pharmaceuticals, while its organics solubility is beneficial for formulation purposes.

To summarize, the solubility properties of methyl 4-hydroxybenzoate are defined by:

  1. Organic solvent compatibility
  2. Temperature variations
  3. Influence of pH

Understanding these solubility traits is essential for its practical applications and for enhancing formulation strategies within industrial sectors.

Interesting facts

Interesting Facts about Methyl 4-Hydroxybenzoate

Methyl 4-hydroxybenzoate, commonly known as methylparaben, is a fascinating compound widely utilized in various industries. Here are some intriguing aspects about this compound:

  • Preservative Power: Methylparaben is famous for its antimicrobial properties, making it a popular choice as a preservative in cosmetics, pharmaceuticals, and food products.
  • Safety Approved: It has been extensively studied and deemed safe for use by several health organizations, including the FDA and the European Commission.
  • Natural Occurrence: Interestingly, methylparaben naturally occurs in some fruits, such as blueberries and raspberries, which adds to its appeal in organic formulations.
  • Synergistic Effects: Often combined with other parabens (like propylparaben), methylparaben exhibits synergistic effects that enhance their antimicrobial efficacy.
  • Controversy: Despite its widespread use, methylparaben has been at the center of debates regarding skin health and potential hormonal effects, a topic that warrants ongoing research.

It's fascinating to note how methyl 4-hydroxybenzoate stands at the crossroads of consumer safety and scientific innovation. As ongoing research continues to unravel the complexities of its applications and effects, this compound remains a subject of keen interest within both the scientific community and the marketplace.


Synonyms
Methyl 4-hydroxybenzoate
METHYLPARABEN
99-76-3
Methyl paraben
Methyl p-hydroxybenzoate
Nipagin
Methyl parahydroxybenzoate
Tegosept M
Moldex
Maseptol
Preserval M
Methaben
Metoxyde
Preserval
Metaben
Paridol
Septos
Solbrol
Methyl butex
p-Hydroxybenzoic acid methyl ester
p-Methoxycarbonylphenol
Benzoic acid, 4-hydroxy-, methyl ester
Methyl chemosept
p-Carbomethoxyphenol
4-Hydroxybenzoic acid methyl ester
Methyl parasept
Nipagin M
Aseptoform
Methylben
Abiol
Methyl-p-hydroxybenzoate
Methyl p-oxybenzoate
Solbrol M
4-(Methoxycarbonyl)phenol
4-Hydroxybenzoic acid, methyl ester
FEMA No. 2710
Killitol
p-Hydroxybenzoic methyl ester
FEMA Number 2710
MFCD00002352
Methyl ester of p-hydroxybenzoic acid
p-Oxybenzoesauremethylester
Methylparaben e218
NSC 3827
CCRIS 3946
Benzoic acid, p-hydroxy-, methyl ester
HSDB 1184
Methyl paraben (e218)
methyl 4- hydroxybenzoate
UNII-A2I8C7HI9T
NSC-3827
p-Hydroxybenzoic acid, methyl ester
EINECS 202-785-7
A2I8C7HI9T
EPA Pesticide Chemical Code 061201
NSC-406127
BRN 0509801
methyl hydroxybenzoate
DTXSID4022529
INS number 218
CHEBI:31835
Methylis hydroxybenzoas
AI3-01336
INS-218
4-HYDROXY-BENZOIC ACID METHYL ESTER
Methylester kyseliny p-hydroxybenzoove
E218
CHEMBL325372
DTXCID402529
INS NO.218
E-218
NSC3827
EC 202-785-7
4-Hydroxybenzoic acid-methyl ester
NCGC00159376-02
NCGC00159376-04
E 218
METHYLPARABEN (II)
METHYLPARABEN [II]
WLN: QR DVO1
METHYLPARABEN (USP-RS)
METHYLPARABEN [USP-RS]
Methylparaben [USAN]
Caswell No. 573PP
4-Hydroxybenzoic acid-methyl ester 1000 microg/mL in Acetonitrile
METHYL HYDROXYBENZOATE (MART.)
METHYL HYDROXYBENZOATE [MART.]
CAS-99-76-3
SMR000036660
Methyl 4-?Hydroxybenzoate(Methyl Paraben)
METHYL PARAHYDROXYBENZOATE (EP MONOGRAPH)
METHYL PARAHYDROXYBENZOATE [EP MONOGRAPH]
METHYL SALICYLATE IMPURITY C (EP IMPURITY)
METHYL SALICYLATE IMPURITY C [EP IMPURITY]
p-Oxybenzoesauremethylester [German]
Methylparaben [USAN:NF]
PROPYL HYDROXYBENZOATE IMPURITY B (EP IMPURITY)
PROPYL HYDROXYBENZOATE IMPURITY B [EP IMPURITY]
Metagin
METHYL4-HYDROXYBENZOATE
Lexgard M
Paraben M
Methylester kyseliny p-hydroxybenzoove [Czech]
(Methyl Paraben)
Methylparaben, NF
Methylparaben, FCC
4-carbomethoxyphenol
Methylparaben (NF)
Methylparaben (TN)
Solparol (Salt/Mix)
methyl 4-hydoxybenzoate
methyl 4 hydroxybenzoate
methyl 4-hydroxylbenzoate
methyl 4-hydroxy-benzoate
methyl-4-hydroxy-benzoate
Methyl 4-?Hydroxybenzoate
Methyl paraben (Standard)
METHYLPARABEN [MI]
Preserval MS (Salt/Mix)
bmse010009
methyl (4-hydroxy)benzoate
METHYLPARABEN [FCC]
cid_7456
SCHEMBL4440
isLeaf Tattoo Eyebrow Brown
METHYLPARABEN [HSDB]
METHYLPARABEN [VANDF]
MLS001304047
MLS001304187
BIDD:ER0241
4-hydroxybenzoate methyl ester
INS No. 218
METHYL PARABEN [VANDF]
METHYLPARABEN [WHO-DD]
GTPL6273
Methyl parahydroxybenzoate (TN)
HY-N0349R
4-Hydroxybenzoic acid methylester
methyl 4-hydroxybenzenecarboxylate
MSK2509
HMS2883I08
Methyl Paraben, analytical standard
Methyl parahydroxybenzoate (JP17)
4-hydroxy benzoic acid methyl ester
CS-D1181
HY-N0349
Tox21_111616
Tox21_202318
Tox21_300009
BBL005648
BDBM50209100
CK1194
Methyl 4-hydroxybenzoate - BP grade
NSC406127
s3985
STK802470
AKOS000119910
Tox21_111616_1
CCG-266228
DB14212
FM01972
METHYL HYDROXYBENZOATE [WHO-IP]
METHYL P-HYDROXYBENZOATE [FHFI]
METHYL PARAHYDROXYBENZOATE [JAN]
USEPA/OPP Pesticide Code: 061201
Methyl 4-hydroxybenzoate, >=99%, FCC
NCGC00159376-03
NCGC00159376-05
NCGC00159376-06
NCGC00253939-01
NCGC00259867-01
SY006626
BENZOIC ACID,4-HYDROXY,METHYL ESTER
DB-080628
H0216
M2206
Methyl 4-hydroxybenzoate, analytical standard
Methyl 4-hydroxybenzoate, p.a., 98-102%
NS00001849
EN300-15481
isLeaf Long Lasting Waterproof Eyeliner Black
isLeaf Long Lasting Waterproof Eyeliner Brown
METHYLIS HYDROXYBENZOAS [WHO-IP LATIN]
D01400
Methyl 4-hydroxybenzoate, USP, 98.0-102.0%
AK-087/40191206
Methyl paraben;4-Hydroxybenzoic acid methyl ester
Q229987
BRD-K78321730-001-10-8
Methyl 4-hydroxybenzoate, SAJ first grade, >=98.0%
Methyl 4-hydroxybenzoate, tested according to Ph.Eur.
Z19674820
F1908-0119
Methyl 4-hydroxybenzoate, BioXtra, >=99.0% (titration)
Methylparaben, certified reference material, TraceCERT(R)
Methyl 4-hydroxybenzoate, ReagentPlus(R), >=99.0%, crystalline
Methylparaben, United States Pharmacopeia (USP) Reference Standard
InChI=1/C8H8O3/c1-11-8(10)6-2-4-7(9)5-3-6/h2-5,9H,1H
Methyl 4-hydroxybenzoate, BioReagent, suitable for insect cell culture
Methyl parahydroxybenzoate, European Pharmacopoeia (EP) Reference Standard
Methylparaben, Pharmaceutical Secondary Standard; Certified Reference Material
202-785-7