Zhishang Chemical

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Molecular Formula: C91H62N2O44

Formula Weight: 1887.45298

ZSpharmac: LACCAIC ACID Supplier

Product Name: LACCAIC ACID
CAS No: 60687-93-6
Purity: 99%

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Basic Info

Other Names:Shellac Red Pigment
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Red to Very Dark Red Solid
EINECS No.:918-731-7
Storage:-20°C Freezer, Under Inert Atmosphere


LACCAIC ACID is one of the most widely used natural colors, it is an extract derived from animals. People’s utilization of lac red pigment is earlier than that of lac resin. Lac red pigment is traditionally used in food, medicine, cosmetics, printing and dyeing and textile industries. Its color itself is red or pink, but it is formulated through mordant dyeing. Other shades available.

In recent years, with the development of medical toxicology and biological experiments, people have realized that some synthetic food colorings have certain toxicity to the human body, and some have carcinogenic effects. Therefore, natural coloring has gained widespread attention and application again. . LACCAIC ACID is water-soluble and non-toxic, and has been widely used as an additive with high safety. Moreover, lac red pigment has stronger tinting power than other natural pigments, and has good stability to light, metal ions and heat, etc. Advantages, lac red pigment is increasingly accepted as a natural food coloring. Japan and other countries have dyed food with lac red pigment, and its application prospect is very broad.


Boiling point 453.24°C (rough estimate)
density 1.4363 (rough estimate)
refractive index 1.5376 (estimate)
storage temp. -20°C Freezer, Under inert atmosphere
solubility Aqueous Base (Slightly), DMSO (Slightly)
form Solid
color Red to Very Dark Red



  1. LACCAIC ACID has actually been commonly made use of in drinks, fruit juices, orange juice, hawthorn juice, banana juice, spices, ice cream, candy, jelly, tablet icing, cosmetics, and so on.
  2. As a food colorant, LACCAIC ACID can be used in fruit and vegetable juice drinks, carbonated beverages, wine, jams, sauces as well as candies according to regulations in my nation, with an optimum usage of 0.50 g/kg.
  3. LACCAIC ACID as food red coloring. It is orange when acidic and also very secure. It is most suitable for beverages, candies, jellies, etc (0.05% to 0.2%) that do not contain healthy protein or starch. It is purple for healthy protein and starch, as well as great for stuffing core (0.05%~ 0.3%). The inside of foreign ham as well as sausage is colored purple red. In order to prevent the healthy protein from transforming black when colored, a stabilizer (alum, salt tartrate, phosphate, and so on) can be made use of in combination, as well as the enhancement amount is 0.05% to 0.4%. Include 0.05% to 0.4% of vegetable healthy protein. Add 0.05% to 0.2% to experienced tomato sauce, strawberry jam, and so on. It can still be used in cakes, drinks, noodles, and so on.

The Refining Method of LACCAIC ACID

1) Liquid remedy extraction
Removing the crushed initial gum tissue with a liquid option to get a gel cleaning remedy;
2) Sedimentation separation, filtration
The gel washing fluid is subjected to sedimentation and also separation, and after that filteringed system to remove impurities to acquire the gel cleaning fluid filtrate;

3) Readjust the acid worth of the filtrate and also remove impurities by centrifugation
After adjusting the pH worth of the gel laundry filtrate with acid, it is centrifuged to eliminate contaminations by utilizing a centrifuge to get a centrate;

4) Microfiltration to eliminate contaminations
Microfiltration of the centrifugate to acquire a microfiltrate;
5) Ultrafiltration to remove impurities
Ultrafiltration of the microfiltrate to get an ultrafiltration concentrate;
Wherein, also consist of the action of concentrating and also drying the ultrafiltration concentrate, that is, vacuum-concentrate the ultrafiltration concentrate, and then make it dry in a vacuum cleaner state to obtain a lac red pigment solid.

Wherein, in step 1), defined aqueous remedy is industrial tap water, or adopts somewhat alkaline liquid option, where Antacid can be picked sodium carbonate or sodium tetraborate.

Specifically, the pH value of the industrial faucet water is between 7-8; the pH value of the a little alkaline aqueous remedy is between 7-8.

Wherein, in the action 1), the raw gum is first squashed right into fragments as well as contaminations are gotten rid of with a filter, and then the raw rubber bits are liquified in an aqueous service for soaking, and also the weight ratio (glue-liquid proportion) of the raw rubber fragments to the aqueous option is regulated to be 1: 3 ~ 10, preferably 1: 5. Wherein, the pH worth of controlling the washing fluid is between 7 ~ 8; particularly, the bit size of the initial rubber particles is 1-10 millimeters, ideally the fragment dimension of the initial rubber bits is 4-6 millimeters;; The leaching can be duplicated several times, each saturating time is regulated at 0.5-12 hrs, and the soaking time is ideally 4 hrs. Wherein, symphonious 2), clearing up time is managed at 2 ~ 24 hours, is preferably 10 ~ 14 hours; Take on 200 ~ 400 objective stainless-steel displays to filter, can take on 200 orders as well as 400 function stainless steel screens to perform two-stage filtering together.

Wherein, in step 3), the pH worth of the filtrate is adapted to be 3.5 ~ 4, and the acid of the filtrate is adjusted to select several of citric acid, phytic acid, acetic acid, hydrochloric acid.

Wherein, symphonious 4), the membrane layer pore size of the microfiltration membrane embraced is 0.22 ~ 0.80 micron, and the microfiltration membrane layer can choose cellulose ester microfiltration membrane layer; Symphonious 2, the ultrafiltration membrane embraced The molecular weight cut-off is 5000 ~ 30000 daltons, and the ultrafiltration membrane can choose a sort of in polyether sulfone coiled membrane layer, cellulose coiled membrane layer. In particular, the ultrafiltration membrane layer utilized is a polyethersulfone roll membrane.

Wherein, in claimed step 4), when executing microfiltration treatment, the operating pressure difference on both sides of the control microfiltration membrane is 0.05 ~ 0.09 MPa; in step 2, when executing ultrafiltration treatment, control both sides of the ultrafiltration membrane layer 10 ~ 0.40 Mpa 。 The operating stress difference is 0. 10 ~ 0.40 Mpa.

In particular, in the step 4), the microfiltration procedure is an unfavorable stress procedure, as well as the stress on the centrate side of the microfiltration membrane is an atmospheric pressure, as well as the microfiltrate side is unwinded and vacuumed, and also the vacuum cleaner stress is controlled at – 0.05 ~ -0.09 Mpa (being 0 with an air pressure, when regulating the microfiltration procedure, the stress on one side of the microfiltrate is-0.05 ~ -0.09 Mpa about an atmospheric pressure); Be positive stress operation during ultrafiltration process, pick to pressurize on the microfiltrate one side of ultrafiltration membrane layer, control the included pressure to be 0.10 ~ 0.40 Mpa (being 0 with an air pressure, manage the pressure on microfiltrate one side About one atmospheric pressure is 0.10 ~ 0.40 Mpa), as well as the stress on one side of the ultrafiltrate is one air pressure.

Wherein, in step 6), the vacuum cleaner level when controlling the vacuum concentration is-0.06 ~ -0.08 MPa, and also the temperature level is 60 ~ 75 ° C; the temperature throughout the control drying is 75 ~ 100 ° C, and the vacuum degree is-0. 06 ~ -0. 08MPa.

An additional element of today development provides LACCAIC ACID prepared by the above technique.

The LACCAIC ACID improved by the inventive method has the adhering to benefits:
The polished LACCAIC ACID is bright red, as well as the yield of polished lac red pigment is over 0.43% (based upon raw rubber); its signs such as weight reduction on drying out, residue on ignition, heavy metals such as lead as well as arsenic are significantly less than the national requirement, and also lac red The pigment refining effect is noticeable, making sure that the efficiency of lac red pigment fulfills the requirements of the “National Criterion of individuals’s Republic of China-Food Ingredient Lac Red Pigment [GB/ T 4571-1996], as well as the content of heavy metals such as lead as well as arsenic is much lower The material specified in the national basic improves the security of lac red vegan food.

Lac red pigment is refined by membrane layer refining approach, which prevents the addition of a large quantity of acid and antacids, preserves the original chemical framework of lac red pigment, as well as the membrane splitting up innovation is simple, which is a green chemical process and innovation, getting rid of air pollution from the resource.

Specific Implementation of LACCAIC ACID

Using raw gum (purple stem) as raw material, the method of the present invention is used to extract and refine LACCAIC ACID. The raw gum comes from Pu’er City, Yunnan Province.

1, the original gum is crushed into particles, the particle size is 4 ~ 6 mm, and impurities such as resin and sand are removed by a circular pendulum sieve;

2. Add the raw rubber crushed particles into the rubber washing tank equipped with industrial tap water with a pH value between 7 and 8, and control the glue-liquid ratio (that is, the weight ratio of the crushed raw rubber to the aqueous solution) to be 1: 5, Soak for 4 hours to collect the washing liquid; repeat three times, and combine the washing liquid;

3. Add the gel washing solution into the clarification tank to settle, separate the sediment and particle shellac, and the settling time is 12 hours;

4. Carry out two-stage filtration to the clarified gel washing liquid, the filter screen of the first-stage filtration is 200 mesh stainless steel wire mesh, and the filter screen of the secondary filtration is 400 mesh stainless steel wire mesh;

5. Regulate the acid value of the filtrate with citric acid (solid), and control the pH value of the filtrate to be 3.5~4.0;

6. Send the filtrate to a centrifuge, and centrifuge the filtrate regulated by citric acid to remove solids and suspended matter;

7. At room temperature, use a FILTER microfilter (produced by Beijing Zhongyi Zhonghe Biotechnology Co., Ltd.) using a mixed cellulose ester microfiltration membrane (produced by Tianjin Hengao Technology Development Co., Ltd.) for microfiltration. The pore size of the microfiltration membrane is 0.45 microns , the pressure on one side of the centrate of the microfiltration membrane is an atmospheric pressure, and the microfiltrate one side is decompressed and vacuumized, and the vacuum pressure is-0.06~-0.08Mpa (being 0 with one atmospheric pressure, controlling the microfiltrate one side 08Mpa) to obtain microfiltrate;

8. At room temperature, use a Prepscale ultrafiltration unit (produced by Millpore, USA) with a polyethersulfone roll membrane (produced by Millpore, USA) as the ultrafiltration membrane to perform ultrafiltration on the microfiltrate, and add Pressure, the increased pressure is controlled at 0.15~0.25Mpa (with an atmospheric pressure being 0, the pressurized pressure on the microfiltrate side is 0.15~0.25Mpa relative to an atmospheric pressure when controlling ultrafiltration to remove impurities), and The pressure on one side of the ultrafiltrate is one atmospheric pressure, and the molecular weight cut-off of the polyethersulfone coiled membrane is 10,000 nominal molecular weight;

9. Then in a vacuum degree of -0.06 ~ -0.08MPa, the temperature is 60 ~ 75 ° C, the ultrafiltrate is vacuum concentrated, after that, in a vacuum oven, at a temperature of 75 ~ 100 ° C, Dry it under vacuum degree of -0.06~-0.08MPa to obtain bright red LACCAIC ACID solid.

About Products:
If you need LACCAIC ACID as a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced LACCAIC ACID manufacturer and supplier, ZSpharmac will provide LACCAIC ACID raw materials to customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get LACCAIC ACID Quotation