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Name :methylparaben
CAS No. :99-76-3
Appearance:White Crystalline Powder
Assay (on dry base):98.0-102.0%
Melting Point:125-128℃
Acidity:Passed
Loss on Drying:0.5%Max
Sulfate(So42-):0.024%Max
Residue on Ignition:0.1%Max
Identification :Passed
Related Substance:Passed
Color of Solution :Passed
Organic Volatile Impurities :Passed
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Name:Butylparaben
CAS Number :94-26-8
Appearance:White crystalline powder
Purity (on dry base ) %:98.0-102.0
Melting Point ℃:68-71
Residue on Ignition % :≤0.05
Acidity:ml ≤0.1
Color of solution:Passed
Related Substances:Passed
Heavy Metal (Pb) ppm:≤10
Loss on drying %:≤0.5
Organic Volatile Impurities :Passed
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Name :Ethylparaben
CAS No. :120-47-8
Appearance:White Powder
Assay (on dry base):98.0-102.0%
Melting Point:115-118℃
Acidity:<0.1
Sulfate(So42-):0.024%Max
Residue on Ignition:0.1%Max
Identification:Passed
Related Substance:PHBA≤0.50%
Single impurity:≤0.50%
Total impurities:≤1.0%
Color of Solution:Passed
Organic Volatile Impurities :Passed
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English name :Isobutylparaben
CAS No. :4247-02-3
Molecular weight :194.227
Density :1.1±0.1 g/cm3
Boiling point :302.3±15.0 °C at 760 mmHg
Molecular formula:C11H14O3
Melting point :76°C
Appearance:Colorless fine crystal or white crystalline powder
Purity (on dry base ) %:Not less than 99.0
Melting Point℃:75-77
Loss on drying % :≤0.5
Free acid(HBA) % :≤0.55
Heavy Metal (Pb) ppm:≤10
Arsenic %:≤0.0004
Sulfate %:≤0.024
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CAS number: 100-09-4
Molecular weight: 152.147
Density: 1.2±0.1 g/cm3
Boiling point: 278.3±13.0 °C at 760 mmHg
Molecular formula: C8H8O3
Melting point: 182-185 °C (lit.)
Appearance:White acicular powder
Purity (on dry base ) %:Not less than 99.5
Melting Point ℃:183-185
Loss on drying %:≤0.5
Residue on Ignation %:≤0.10
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Name :Propyl 4-hydroxybenzoate
CAS No. :94-13-3
Appearance:White Crystalline Powder
Assay (on dry base):98.0-102.0%
Melting Point:96-99℃
Acidity:Passed
Loss on Drying:0.5%Max
Sulfate(So42-):0.024%Max
Residue on Ignition:0.1%Max
Identification :Passed
Related Substance:Passed
Color of Solution:Passed
Organic Volatile Impurities:Passed
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CAS number: 35285-68-8
Molecular weight: 188.156
Density: N/A
Boiling point: 297.5ºC at 760 mmHg
Molecular formula: C9H9NaO3
Melting point: N/A
MSDS: N/A
Flash point: 120.3ºC
Appearance:white crystalline powder
Purity (on dry base ) %:99.0-102.0
PH Value:9.5-10.5
Loss on drying % :≤5
Sulfate %:≤0.03
Chloride %:≤0.035
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English name: Methylparaben Sodium Salt
CAS number: 5026-62-0
Molecular weight: 174.129
Density: N/A
Boiling point: 265.5ºC at 760 mmHg
Molecular formula:C8H7NaO3
Melting point: >125°C
MSDS: N/A
Flash point: 116.4ºC
Appearance:white crystalline powder
Purity (on dry base ) %:99.0-102.0
PH Value:9.5-10.5
Loss on drying %:≤5
Sulfate %:≤0.03