Methylparaben
Price | Get Latest Price | ||
Package | 1kg | 10kg | 100kg |
Min. Order: | 1kg |
Supply Ability: | 10000kg |
Update Time: | 2023-09-14 |
Product Details
Product Name: Methylparaben | CAS No.: 99-76-3 |
EC-No.: 202-785-7 | Min. Order: 1kg |
Purity: 99.8 | Supply Ability: 10000kg |
Release date: 2023/09/14 |
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Product details:
1.What is Methylparaben?
ChEBI: Methylparaben is a 4-hydroxybenzoate ester resulting from the form al condensation of the carboxy group of 4-hydroxybenzoic acid with metha nol. It is the most frequently used antimicrobial preservative in cosmetics. It occurs naturally in several fruits, particularly in blueberries. It has a role as a plant metabolite, an antimicrobial food preservative, a neuroprotective agent and an antifungal agent.
2.What is it used for?
Methylparaben is the ester of methyl alcohol and p-hydroxybenzoic acid, It is a bacteriostatic agent and preservative that was added to local anesthetic agents without vasoconstrictors before 1984 to prevent bacterial growth. Allergic reactions developed from repeated exposures to parabens led to the removal of this agent from dental anesthetic solutions. Similar products produced by similar production methods, like ethyl p-hydroxybenzoate (paraben B) and propyl p-hydroxybenzoate (Nepalese c), are also disinfectant preservatives. The products are irritating to the skin.
Methyl 4-hydroxybenzoate is used as an anti-fungal agent. It is also used as a preservative in foods, beverages and cosmetics. It acts as an inhibitor of growth of molds and to lesser extent bacteria and as a vehicle for ophthalmic solution.
Methylparaben and propylparaben are the most common of these. parabens is one of the most commonly used group of preservatives in the cosmetic, pharmaceutical, and food industries. Parabens provide bacteriostatic and fungistatic activity against a diverse number of organisms, and are considered safe for use in cosmetics, particularly in light of their low sensitizing potential. An evaluation of preservatives for use in leave-on cosmetic preparations lists parabens among the least sensitizing. The range of concentrations used in cosmetics varies between 0.03 and 0.30 percent, depending on the conditions for use and the product to which the paraben is added.
Methylparaben is one of the most popular preservatives in beauty products and food items. According to the National Library of Medicine, the ingredient occurs naturally in a handful of fruits-like blueberries-though it can also be created synthetically.It's found in everything from cream cleansers and moisturizers to primers and foundations and helps these products maintain their effectiveness. Rabach says that it's chock-full of anti-fungal and antibacterial properties, which work wonders to extend the shelf life of skincare, haircare, and cosmetic products.
Methylparaben is an antimicrobial agent which is a white free-flowing powder. it is active against yeast and molds over a wide ph range. see parabens.
3.What are the specifications of this product?
Product Name: | Methylparaben |
CAS: | 99-76-3 |
MF: | C8H8O3 |
MW: | 152.15 |
EINECS: | 202-785-7 |
Melting point | 125-128 °C (lit.) |
Boiling point | 298.6 °C |
density | 1,46g/cm |
vapor pressure | 0.000005 hPa (20 °C) |
refractive index | 1.4447 (estimate) |
FEMA | 2710 | METHYL P-HYDROXYBENZOATE |
Fp | 280°C |
storage temp. | room temp |
solubility | ethanol: soluble0.1M, clear, colorless |
form | Crystalline Powder |
pka | pKa 8.15(H2O,t =20.0) (Uncertain) |
color | White to almost white |
Odor | odorless or faint char. odor, sl. burning taste |
PH | 5.8 (H2O, 20°C) (saturated solution) |
Water Solubility | Slightly soluble in water. |
FreezingPoint | 131oC |
Merck | 14,6107 |
BRN | 509801 |
Stability: | Stable. Incompatible with strong oxidizing agents, strong bases. |
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