| Customization: | Available |
|---|---|
| CAS No.: | 94-13-3 |
| Formula: | C10h12o3 |
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Propylparaben is mainly used as a bactericidal preservative in food, cosmetics and medicine, and also as a feed preservative.
| Melting point | 95-98 °C(lit.) |
| Boiling point | 133°C |
| density | 1.0630 |
| vapor pressure | 0.67 hPa (122 °C) |
| FEMA | 2951 | PROPYL P-HYDROXYBENZOATE |
| refractive index | 1.5050 |
| Fp | 180°(356°F) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | ethanol: soluble0.1M, clear, colorless |
| form | Crystalline Powder |
| pka | pKa 8.4 (Uncertain) |
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ITEM
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STANDARD
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Appearance
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White crystal powder
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Assesment
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HPLC
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Assay
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98%-102%
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Organic impurities
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p-Hydroxybenzoic acid NMT 0.5%
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Unspecified impurities NMT 0.5%
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Total impurities NMT 1.0%
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Residue, %
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≤0.1
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Melting Point, ºC
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96-99
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Acid
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Passed
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Appearance of solution
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Passed
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Residual Solvents
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3000 ppm Methano l maximum
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Heavy Metal (Pb)
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≤10ppm
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Loss on drying, %
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≤0.50
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We Promise:
1.Any inquiries will be replied with in 12 hours.
2.Dedication to quatity,supply & service.
3.Strictly on selecting raw meterials.
4.Reasonable & competitive price ,fast lead time.
5.Smple order in stock and one week for bulk production.
6. We have strong cooperation with FEDEX,TNT,DHL,EMS,or you also can choose your own shipping agent.
Q1: Are you a manufacturer or trading company?
Re: We are one company integrated industry and trade. No matter the products we manufacture or trade, high quality products and competitive price always will be provided for you.
Q2: May I get one sample before placing order?
Re: Yes, we'd like to provide sample for you. free samples(max 1Kg) are available, but freight cost will be born by customers.
Q3: Which payment is available for your company?
Re: In order to prompt our cooperation, there are some payment methods for your choice. T/T(USD), Western union, Paypal, Credit card, Alipay trade insurance all is ok. You can choose the one which is convenient for you.
Q4: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, T/T, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery.
For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.
Q5: Is there any possible to use my appointed label or package?
Re: Sure. If needed, we'd like to use label or package according to your requirement.
Q6: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are high qualified. If the goods can't come to the quality we promise, you can ask for refund.
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