Methyl Paraben Cosmetics Raw Material is a kind of white crystal or powder with a slight special smell. It is a food additive and organic synthetic raw material. It can be used as a bactericidal and antiseptic additive for medicine, food, spices, film, and high-end products, as well as a feed antiseptic. Its bactericidal and antiseptic effect is greater than that of Nipagin ethyl ester. When mixed with methylparaben, it can also kill Pseudomonas aeruginosa. It is also used as an organic synthesis reagent.
| Molecular formula |
|
|
|
Analysis tests |
Standard |
Results |
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Appearance |
White crystalline powder |
Conform |
|
Purity(%) |
98.0-102.0 |
99.67 |
|
Identification |
USP-34 |
Conform |
|
PH |
4.0-7.0 |
Conform |
|
Melting point (℃) |
125-128 |
126.5-127.5 |
|
Residue on ignition(%) |
≤0.10 |
0.05 |
|
Completeness of solution |
Clear and transparent |
Clear and transparent |
|
Organic volatile impurities |
≤0.50 |
Conform |
|
Water(KF)(%) |
≤0.50 |
0.31 |
|
Conclusion |
Conform(USP-34) |
Is Methylparaben harmful to the body?
Methyl Paraben Cosmetics Raw Material is a kind of milky white to yellowish brown powder, which is easy to absorb moisture and agglomerate. It is a kind of non-ionic surfactant formed by the combination of sucrose and fatty acid groups. This product is harmless to the human body. It has excellent biodegradability. It is an efficient emulsifying stabilizer. It is widely used in condiments such as soy sauce and vinegar, pickled products, baked food, sauce products, beverages, rice wine and fruit, and vegetable preservation. Chinese GB2760 stipulates that ethyl Paraben, Propyl Paraben, sodium paraben methyl ester, sodium paraben ethyl ester, and sodium paraben propyl ester, including this product, can be used as food preservatives.
At the same time, this product is internationally recognized as a broad-spectrum and high-efficiency food preservative. The United States, Europe, Japan, Canada, South Korea, Russia, and other countries allow the application of Nipagin ester in food.
About the antibacterial comparison of this product?
Methyl Paraben Cosmetics Raw Material has a phenolic hydroxyl structure, so its anti-bacterial property is stronger than benzoic acid and sorbic acid.
Its antibacterial activity is mainly in a molecular state, and the hydroxyl group in its molecule has been esterified and no longer ionized, so it has a good antibacterial effect in the range of pH 3-8. Benzoic acid and sorbic acid are both acidic preservatives, and their bacteriostatic effect is poor in products with pH > 5.5.
Its safety is very high. Taking ethyl ester as an example, its LD50 is 5000 mg / kg and Adi is 0-10 mg / kg, while the LD50 of benzoic acid is 2530 mg / kg and Adi is 0-5 mg / kg,
The LD50 of sorbic acid is 7630mg / kg, and the ADI is 0-25mg / kg. Since the addition amount of this product is only 1 / 10-1 / 5 of sorbic acid and benzoic acid, its relative safety is much higher than that of sorbic acid.
Since a large number of nutrients are added to cosmetics, it is easy to create conditions for the propagation of microorganisms. Therefore, a certain amount of preservative is added to the cosmetics to prevent the microorganisms from causing the deterioration of the cosmetics, thereby extending the shelf life. According to the hygienic standards for cosmetics in China, the maximum limit of p-hydroxybenzoate preservatives in cosmetics is 0.4% for single esters and 0.8% for mixed esters. It has been reported that excessive use of p-hydroxybenzoate in cosmetics can cause contact dermatitis.
A little knowledge of Methylparaben and propylparaben
methyl-p-hydroxybenzoate: used in cosmetics, detergents, textiles, coatings, and other industries. It is a strong bactericide and antiseptic. Phenol coefficient = 3.8. Also as an organic intermediate. Extremely low toxicity and no irritation to the human body. Propyl Paraben: mainly used as antiseptic and feed antiseptic. Its antiseptic effect is greater than ethyl paraben
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Transportation Time |
Shipping method |
Cargo weight requirements |
Advantage |
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3-7 days |
DHL,Germany DHL,Germany DPD, |
Suitable for under 50kg. |
We have warehouses in Germany and California, USA, |
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7-15 days |
By Air |
Suitable for more than 50kg. |
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15-60 days |
By Sea |
Suitable for more than 500kg. |
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