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Parabens

Category:Preservative Series

Other Name: Methyl p-hydroxybenzoate 

                        Ethyl p-hydroxybenzoate

                         Propyl p-hydroxybenzoate

                         Butyl p-hydroxybenzoate

                         Iso- Butyl p-hydroxybenzoate

INCI Name : Methylparaben / /Ethylparaben //  Propylparaben

                      Butylparaben // Iso- Butylparaben

CAS No.: 99-76-3 // 12047-8 // 94-13-3 // 94-26-8 // 4247-02-3

Einecs No.:202-785-7 // 204-399-4 // 202-307-7 // 202-318-7 // 224-208-8

Molecular Formula: C8H8O3 // C9H10O3 // C10H12O3 // C11H14O3 // C11H14O3

Molecular Weight:152.10 // 166.20 // 180.20 // 194.20 // 194.20

Technical Data Sheet

1.   Parabens are internationally recognized as efficient broad-spectrum preservative. No allergy and irritation to eye,

      skin, mucous membrane,. Its mechanism of action: destroy microbial cell membranes, intracellular protein

      denaturation and inhibit microbial cell respiration enzymes and electron transfer enzyme activity.

2.   Paraben mainly antibacterial activity of molecular functions, and the molecule is esterified hydroxyl groups,

      noionization, so that it has a good antibacterial effect in the pH3.0 ~ 8.0.

3.   Its having a phenolic hydroxyl structure, so anti-bacterial performance than benzoic acid, sorbic acid. Good

      compatible with most cosmetic ingredients. Usually several paraben compound used in order to achieve a better

      effect.

 

Items

Methyl paraben

Ethyl paraben

Propyl paraben

Butyl paraben

Iso- Butyl paraben

Appearance

Colorless crystals or whie crystalline powder

Odor

Slight special aroma

Content,%

98.0-102.0

98.0-102.0

98.0-102.0

98.0-102.0

99.0 wt Min

Melting point ,

125.0-128.0

115.0-118.0

95.0-98.0

68.0-71.0

75.0-77.0

Sulphated ash,%

0.1Max

0.1Max

0.1Max

0.1Max

0.1Max

 

1.   A widely used in all kinds of creams, shampoos and other personal care products, cleaning products and

     medicines.

2.   Not only in the pharmaceutical industry as an antiseptic agent, but also used in organic synthesis ,food, spices,

      film ,etc.

3.   In the food industry , used in soy sauce, vinegar, spices, pickles, baked goods, sauces, beverages, wine, and

      fresh fruits & vegetables,etc.

 

25 Kgs /cardboard drum with double PE inner bag.

 

Stored in dry and cool place, kept away from sunshine and rain.

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