vitamin a1 All-trans-Retinol Cas 68-26-8
Free Sample Vitamin a1 All-trans-Retinol Cas 68-26-8
Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Min: 10 Gram
Delivery: 7 Days
Transporta: Ocean, Land,Air, DHL，TNT
Port: Shanghai Port, Qingdao Port
Name: vitamin a1
Brand: zhishang chem
|Melting point||61-63 °C(lit.)|
|Boiling point||368.81°C (rough estimate)|
|density||0.9933 (rough estimate)|
|color||yellow to orange|
|Water Solubility||Practically insoluble inwaterorglycerol; soluble in absolute alcohol, methanol,℃hloroform, ether, fats, and oils.|
Retinol is a fat-soluble vitamin that exists in animal foods in the form of free aldehydes or esters and is abundant in fat, protein, milk, and liver.
Plants do not contain vitamin A, but the precursor of vitamin A (provitamin A) exists in vegetables such as carrots and tomatoes. After being absorbed by animals, it can be converted into vitamin A.
Retinol is necessary for maintaining the stability of human growth, development, reproduction, and cell membranes, and plays an important role in the visual process.
Retinal is consumed due to continuous metabolism in the body, and it needs to be replenished by oxidized vitamin A in time. Vitamin A is related to the normal structure and function of the upper and lower cells.
When it is lacking, it will lead to the conjunctiva, dry cornea, inflammation, and even blindness.
It will also cause damage to the respiratory epithelium, which is prone to respiratory infections, hair loss, and infant development. delay etc.
As a nutritional supplement, vitamin A oil is a fatty oil obtained from the liver and pylorus pylorus of aquatic animals or its concentrate. Crush the fresh fish liver and pylorus pendant, add 1-2% sodium hydroxide solution to pH 8-9. Retinol can be used in sausage, margarine, bread, dairy products, fruit juice powder, peanut butter, etc.
|Appearance||Yellow / white|
|Shelf Life||2 years|
|Packing||1kg/bag,25kg/bag or as your requirements|
Retinol, one of the animal forms of vitamin A, is a diterpene and alcohol structure that can be converted into other forms of vitamin A and acts as a storage form of the vitamin in animals with alcohol derivatives, retinyl esters.
Vitamin A has many functions, mainly as follows: Vitamin A is known as the vitamin that maintains light, it plays an important role in the production of human vision, and it has special physiological functions for chemicalbook. If vitamin A is deficient, the skin will be dry and the nail surface will be dry and prone to bifurcation; if vitamin A is lacking during childhood, the resistance will also decrease, and it will be easy to catch a cold and have a fever.
Vitamin A has many important functions in the body. It plays an important role in protecting the retina and stabilizing various cell membranes, thus regulating the permeability of the retina.
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* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
*We will monitor the logistics information in real-time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
1. ≤50kg, we recommend express delivery, usually called DDU service;
2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;
3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;
4. For high-value products, please choose air and express to ensure the safety of the products.
Do you accept sample order?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
How to confirm whether the product quality meets our needs before placing an order?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
What’s your MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.