Zhishang Chemical

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Zhishang Chemical

Lyral CAS 31906-04-4

Molecular Formula: C13H22O2

Formula Weight: 210.31

ZSpharmac: Lyral Supplement

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Product Name: Lyral
CAS No: 31906-04-4
Purity: 99%

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Basic Info

Product Name:Lyral
Other Names:HydroxyMethylpentylcyclohexenecarboxaldehyde
CAS:31906-04-4
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Colourless to Pale Yellow Neat
EINECS No.:250-863-4
Storage:2-8°C
Provide:Lyral MSDS;
Lyral COA

What is Lyral?

Lyral usually contains 4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carbaldehyde and 3-(4-hydroxy-4-methylpentyl)-3-cyclohexene- A mixture of two isomers of 1-formaldehyde. Lyral is an important fine chemical. It is a colorless viscous liquid with a light and sweet fragrance of rabbit’s ear grass, a good lily-of-the-valley fragrance, and a stable and long-lasting fragrance. Lyral is widely used in daily chemical essences and can be used to formulate essences for daily chemical products such as high-end perfumes, soaps, detergents, cosmetics and so on.

Lyral Property

Boiling point 289.85°C (rough estimate)
density 0.995 g/mL at 20 °C
refractive index 1.486-1.493
Fp 93 °C
storage temp. 2-8°C
solubility Benzene (Slightly), Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
pka15.31±0.29(Predicted)
form neat
color Colourless to Pale Yellow

 

Lyral Uses

Lyral can be made use of in numerous scents, as well as in a great light flower style, it will not change or diminish. Rather than or in mix with hydroxycitronellal, it can enhance the aroma of lilac, hyacinth, lily of the valley and honeysuckle. In a variety of flower-shaped soaps, cleaning agents, cosmetic crystals, toiletries as well as fragrances, it can present unusual floral, grainy as well as aftertastes. It can collaborate with ionones and many balsamic materials.

Lyral Preparation

A preparation method of Lyral, comprising the following steps in turn:

1) in the batching still, add 1500kg myrcenol sulfone (weight percentage is 94.3%), 4.5kg alkaline substance and 1.5kg polymerization inhibitor to mix; alkaline substance is triethanolamine and sodium hydroxide according to mol ratio 1 : 1 is the mixture formed by mixing; the polymerization inhibitor is the mixture formed by mixing hydroquinone and 2,6-di-tert-butyl-4-methylphenol according to the molar ratio of 1:1;

2) Put the mixed material into the preheating tube at 42kg/h, control the temperature to 120℃, the pressure to -0.078Mpa, and preheat for 3 seconds;

3) entering the preheated material into the cracking device, controlling the temperature to 125°C, the pressure of -0.081Mp, and the cracking treatment for 3 seconds to obtain a lysate containing myrcenol; the yield of cracking myrcenol is 90%;

4) enter the lysate into the rectification still and carry out rectification treatment, the still temperature of the rectification still is controlled at 135 ℃, the still pressure is controlled at -0.06Mpa, the number of trays is 8, the top temperature is 85 ℃, and the top pressure is -0.085Mp, Collect tower top discharge: 1062.6kg myrcenol (92.3% by weight) and 32.9kg myrcene;

5) The top discharge mixture and 395kg acrolein (95% by weight) were added to the reactor with 150kg/h, without adding a catalyst, controlled temperature 105°C, pressure 0.21Mpa, and addition reaction was performed for 7 hours;

The mixture obtained by the addition reaction enters the rectifying device and carries out two vacuum distillations:

The first vacuum distillation was carried out at a temperature of 55 ° C and a pressure of 15 mmHg, and unreacted myrcene, myrcenol and acrolein were distilled out to obtain 1338.8 kg of Lyral crude product, and the lily of the valley aldehyde chromatographic content was 93%;

Then, the top temperature was controlled at 95°C and the pressure was 15mmHg for the second vacuum distillation to remove a small amount of citrus aldehyde in the crude lily aldehyde to obtain 1101.7kg of Lyral with a content of 99% and a yield of 87.5%.

Quantitative Aspects and Risk Assessment of Lyral Spice Allergens

Hydroxyisohexyl 3-cyclohexene carboxaldehyde, also known as Lyral, is a fragrance ingredient determined as the cause of call hypersensitivity reactions in 2-3% of eczema individuals going through patch testing. Because of its value as an irritant, Lyral has been consisted of in the common patch test collection in many centers. Previously, it has actually been used unrestrictedly in cosmetics. In today study, the dose-response connection for Lyral call hypersensitivity was checked out, using dosages related to normal exposure in aesthetic items. Included were 18 patients with eczema that had previously carried out a positive patch test for Lyral 5% petrolatum, as well as 7 control topics. All cases were examined utilizing serial dilutions of Lyral ethanol from 6% to 6 ppm and a 2-week, duplicated open application test making use of low-dose Lyral ethanol remedies. In the lack of a feedback, a higher dosage was complied with for one more 2 weeks of testing. The test is done on the volar forearm. A positive usage examination happened in 16 of 18 situations (89%), with 11 reacting to low concentrations as well as 5 responding to high focus. None reacted to automobile control of ethanol related to the contralateral arm. All controls were unfavorable for Lyral’s test remedy and also the ethanol control. The distinction between the speculative group as well as the control team was statistically significant (Fisher’s examination, P < 0.001). It was ended that Lyral at the existing level of use is triggering neighborhood level of sensitivity. The exact same degrees were revealed to create sensitive call dermatitis in nearly all sensitized individuals. Considerably lower concentrations are suggested to prevent allergic get in touch with reactions.

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:

OUR MISSION
Help China Chemicals to benefit the happiness of human life
OUR VISSION
Become the most trusted chemical supplier in the world
OUR BUSINESS PHILOSOPHY
Striver – oriented, enrich employees, customer first, deep service, seek development
OUR VALUES
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: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food 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.

Service

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.

FAQ

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.

 

HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?

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.

Shipping

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.

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