O que é Propylparaben / Propyl p-Hydroxybenzoate (E216)? Aplicações, dosagem, alternativas e especificações
Última atualização: 2026-11-14 · CAS 94-13-3 · grau alimentício
- Dados rápidos
- Nome
- Propylparaben / Propyl p-Hydroxybenzoate (E216)
- Número CAS
- 94-13-3
- Grau
- grau alimentício
- Certificações
- ISO 9001 · ISO 22000 · HACCP · FAMI-QS · Kosher · Halal · GMP · SGS
- Áreas de aplicação
- 4
- Documentação
- COA · TDS · SDS
Resumo
Propylparaben, also known as Propyl p-hydroxybenzoate, is a paraben ester preservative produced by the esterification of p-hydroxybenzoic acid with n-propanol. It is an important member of the paraben family and one of the most widely used preservatives in food, cosmetics, and pharmaceuticals. Propylparaben appears as white crystals or crystalline powder with a slight characteristic odor and a slightly bitter taste. Its molecular formula is C10H12O3, molecular weight is 180.20, CAS number is 94–13–3, EINECS number is 202–307–7, and FEMA number is 2951. It is chemically inert and easily compatible with various compounds, serving as an antimicrobial preservative and flavoring agent. Propylparaben exerts its preservative effect by disrupting microbial cell walls and membranes, inhibiting nutrient absorption and reproduction processes. It has broad-spectrum antimicrobial activity against molds, yeasts, and bacteria, with stronger activity than ethylparaben. Compared with traditional preservatives (such as sodium benzoate), it offers lower usage concentration, broad-spectrum activity, safety, economy, and long effective shelf life. Propylparaben has been used as a preservative in the food, cosmetic, and pharmaceutical industries for over 50 years and is recognized as GRAS by the US FDA.
Appearance: White crystals or crystalline powder, slight characteristic odor, slightly bitter taste.
Molecular Formula and Molecular Weight: C10H12O3, molecular weight 180.20.
Aplicações
Aplicações na Indústria Cosmética
Propylparaben is used as a preservative in cosmetics and personal care products, being one of the most widely used preservatives in cosmetics. Main…
Aplicações na Indústria Farmacêutica
Propylparaben is used as a pharmaceutical preservative in the pharmaceutical field. Main Pharmaceutical Applications:
Aplicações na Indústria de Rações
Propylparaben is used as a preservative in the feed industry. Main Applications:
Aplicações de Mistura
Propylparaben can be blended with other parabens for synergistic effects: Propylparaben + Ethylparaben: Blending improves preservative efficacy and…
Especificação
| Specification | Test Method |
|---|---|
| Color | White |
| Place appropriate amount of sample in a clean, dry white porcelain plate, observe under natural light | State |
| Crystals or crystalline powder | Same as above |
| Odor | Odorless or slight characteristic odor |
| Olfactory | Physicochemical Specifications (based on GB 8851–1988, BP2000, USP24 standards): Parameter |
| GB 8851–1988 Standard | BP2000 Standard |
| USP24 Standard | Test Method |
| Propylparaben Content (as C10H12O3 on dry basis), % | ≥99.0 |
| 99.0–100.5 | 99.0–100.5 |
| Titration/HPLC | Melting Point, °C |
| 95–98 | 95–98 |
| 95–98 | Melting point apparatus |
| Loss on Drying, % | ≤0.50 |
| ≤0.50 | ≤0.50 |
| Loss on drying method | Residue on Ignition, % |
| ≤0.05 | ≤0.10 |
| ≤0.05 | Ignition method |
| Sulfates (as SO42−), % | ≤0.024 |
| — | — |
| Barium chloride precipitation turbidimetry | Heavy Metals (as Pb), % |
| ≤0.001 | — |
| — | Atomic Absorption Spectrometry/ICP-MS |
| Arsenic (As), % | ≤0.0001 |
| — | — |
| Atomic Fluorescence Spectrometry | Acidity |
| Passes test | Passes test |
| Passes test | Titration |
| Clarity of Solution | — |
| Clear and transparent | — |
| Visual/Turbidimetry | Organic Volatile Impurities |
| — | — |
| Passes test | Gas Chromatography |
Embalagem e armazenamento
- Embalagem: 25kg net fiber drum with double PE liner.
- Amostra: 100-500g free sample available.
- Armazenamento: Keep in tightly closed packaging, cool, dry, well-ventilated. Protect from light and moisture.
- Validade: 24 months from production date.
Qualidade e certificações
Cada lote é testado pelo laboratório de QC interno. COA, TDS e SDS fornecidos com cada remessa.
Regulamentação e conformidade
UE
Em conformidade com os regulamentos da UE e padrões FAMI-QS.
EUA
Aos requisitos da FDA e AAFCO.
China
Registrado conforme os regulamentos chineses do MOA.
Internacional
Certificado Kosher, Halal e ISO. Formulários FTA disponíveis.
Segurança e manuseio
- Classe de Perigo: Geralmente não perigoso. Consulte a SDS para detalhes.
- Armazenamento: Temperatura ambiente, seco, fechado. Evitar oxidantes fortes.
- Transporte: Mercadoria não perigosa. Frete marítimo/aéreo padrão.
- SDS: Disponível mediante solicitação em sales@xadditive.cn.
Perguntas frequentes
P1: MOQ?
O MOQ é de 1 kg para teste e 25 kg para pedidos regulares. Amostras grátis disponíveis.
P2: Validade?
24 meses a partir da data de fabricação quando armazenado corretamente.
P3: Certificações?
ISO 9001, ISO 22000, HACCP, FAMI-QS, Kosher, Halal, COA, SDS, TDS.
P4: Como obter uma cotação?
Envie um e-mail para sales@xadditive.cn com sua exigência. Respondemos em até 30 minutos.
Solicitar cotação e COA
Solicite a ficha técnica atual, uma amostra de COA e uma cotação por volume — resposta em 30 minutos em dias úteis.