Hebei Qujie Technology Co., Ltd.
MENU Close Home About Us News Honor Contact Us Feedback
Current Position: Home > Product >Organic Raw Material >Caffeic acid CAS 331-39-5
Product
Caffeic acid CAS 331-39-5
  • Brand:hebei qujie
  • Model:25kg/bag
  • Purity:98%
  • Cas:331-39-5
  • Createtime: 2026-05-26
  • Updatetime: 2026-06-05
Product Details
useage be used as an antioxidant and pharmaceutical intermediate.
deliveryInfo
appearance white or pale yellow powder
aliasen
supplyCapacity 70T/Month
harbor tianjin qingdao shanghai
minorder 1KG

Product Description

What is Ectoine?

Ectoin is a cyclic amino acid derivate developed with Freda's unique fermentation technology. As an important substance for extremophiles to survive, ectoin was found in halophiles in extreme environments. It can lock the water molecules around it with high efficiency forming a protective layer on the surface of cytomembrane to effectively protect the substances within a cell. Ectoin has remarkable moisturizing, soothing and repairing efficacy. It has been widely used in various types of cosmetic formulations.

Features

1.Antioxidation

With strong electronegativity, ectoin molecules can promote the combination of water molecules within skin to form a Kosmostropic effect structure. Thus it is helpful in strengthening the water structure.

2. Soothing & Anti-inflammatory

Langerhans cells are the important cells that maintain the normal immune tolerance state of skin. Ectoin can protect langerhans cells against extrernal injuries. It also promotes cellular activity and inhibits the release of inflammatory factors so as to soothe skin from external stimuli.

3.Skin Protection

It defends skin against UV-induced harm and helps maintain healthy skin condition.

Detailed Photos

Product Name:Caffeic acid
CAS:331-39-5
MF:C9H8O4
MW:180.16
EINECS:206-361-2
Mol File:331-39-5.mol  
Melting point:211-213 °C (dec.)(lit.)
Boiling point:272.96°C (rough estimate)
Density 1.2933 (rough estimate)
refractive index 1.4500 (estimate)
storage temp. Store at RT.
solubility ethanol: 50 mg/mL
pka4.58±0.10(Predicted)
form powder
color yellow to tan
Water Solubility soluble in hot water

Product Parameters
Items Specifications Results
Appearance Yellow Powder Yellow Powder
Identification Positive Complies
Assay 98 98.5%
Ash ≤5.0% 2.55%
Loss on drying ≤5.0% 1.20%
Ignition residue ≤2.0% 0.25%
Heavy metals ≤10ppm Complies
Pb ≤2.0ppm Complies
As ≤2.0ppm Complies
Odor Characteristic Complies
Particle size 100%through 80 mesh Complies
Microbioiogical:
Total of bacteria ≤1000cfu/g 100cfu/g
Fungi ≤100cfu/g Complies
Salmgosella Negative Complies
Coli Negative Complies
Conclusion Conform with USP/FCC/E302 specification
Storage condition Store in cool & dry place, Do not freeze. Keep away from strong light and heat.
Shelf life 2 years when properly stored
Packaging & Shipping

packing:25kg/bag or fibre drum, inner by double plastic bag.
Delivery Detail: Some of the products can be supplied within 7 days on the strength of warehouse.




Hebei Qujie Technology Co., Ltd. was established in 2021. It is a private enterprise integrating production, customization, sales, and trade. The company is located at No. 8 Jinhe East Road, Tongye Town, Luquan District, Shijiazhuang City. The factory has an elegant environment, complete equipment, and ample resources. The company possesses advanced technology and professional technical personnel. Since its establishment, the company's sales have steadily increased. The company adheres to the business philosophy of 'quality and price, customer first,' which is effectively reflected in its operations, and is committed to providing customers with sufficient supply and stable and reliable quality.
Business Philosophy: Integrity-based, win-win cooperation
Corporate Spirit: Integrity, gratitude, equality, mutual respect
Corporate Mission: Create opportunities for employees, create value for customers


We strive to meet your demands with the following services:

1.Customized solutions tailored to individual clients
2.Arrangement of third-party product inspections as required
3.Evaluation and mass production based on your counter samples
4.Favorable exclusive discounts for long-term partners
5.Round-the-clock customer support