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Introduction

Cathay Biotech is the leading supplier of biological long-chain diacids worldwide. It provides a series of long-chain diacid products from sebacic acid to octadecanedioic acid with various categories and specifications for the customers in different fields. The production technology is not only environmentally friendly, but also provides a very consistent quality history. In 2018, Cathay’s biological long-chain diacids were rated as the individual champion product of the manufacturing industry by the Ministry of Industry and Information Technology and the China Federation of Industrial Economics.

The recommended applications for our long-chain diacids are polyamides, hot melt adhesives, perfumes, anti-corrosion agents, lubricants, cold resistant plasticizers, powder coatings, and pharmaceuticals.
Characteristics
  • Green manufacturing
    Biological manufacturing, environmentally friendly biotransformation process, production at ambient temperatures
  • Stable quality
    Nearly 20 years of production experience, strict production process control systems, stable and reliable product quality
  • Full categories
    A series of products from sebacic acid to octadecanedioic acid
  • Reliable supply
    Two separate production sites ensure a steady supply
Product list
DC10
+
Decanedioic acid
Name:
Decanedioic acid, Sebacic acid, DC10
Formula:
HOOC(CH2)8COOH
CAS No.:
111-20-6
EINECS No.:
203-845-5
Molecular Weight:
202
Appearance:
White powder、Granule
Decanedioic acid:
≥99.0%
Total dibasic acids:
≥99.5%
Melting point:
131℃-135℃
Ash:
≤30ppm
Application:
Low Ash, low color, suitable for high grade polyamide/nylon, adhesive, perfume, rust prevention, etc
DC11
+
Undecanedioic Acid
Name:
Undecanedioic acid, DC11
Molecular formula:
HOOC(CH2)9COOH
CAS No.:
1852-04-6
EINECS No.:
217-440-6
Molecular weight:
216
Appearance:
White powder
Undecanedioic acid:
≥97.0%
Total dibasic acids:
≥99.0%
Melting point:
110℃-113℃
Application:
Polyamide resin, synthetic perfume, lubricant, hot melt adhesive, anti-rust agent, plasticizer, etc.
DC12
+
Dodecanedioic acid
Name:
Dodecanedioic acid, Lauric acid, DDDA, DDA, DC12
Molecular formula:
HOOC(CH2)10COOH
CAS No.:
693-23-2
EINECS No.:
211-746-3
Molecular weight:
230
Appearance:
White powder
Dodecanedioic acid:
≥98.5%
Total dibasic acids:
≥99.0%
Melting point:
129℃-131℃
Application:
Polyamide/polyester resin, corrosion inhibitors for metalworking fluids, hot melt adhesive, powder coating, lubricant, perfume, etc.
DC13
+
Tridecanedioic Acid
Name:
Tridecanedioic Acid, DC13
Molecular formula:
HOOC(CH2)11COOH
CAS No.:
505-52-2
EINECS No.:
208-011-4
Molecular weight:
244
Appearance:
White powder
Tridecanedioic Acid:
≥98.0%
Total dibasic acids:
≥99.0%
Melting point:
111℃-114℃
Application:
Polyamide resin, synthetic musk, hot melt adhesive and etc., especially suitable for synthetic musk-T and clothing hot melt adhesive
DC14
+
Tetradecanedioic Acid
Name:
Tetradecanedioic Acid, DC14
Molecular formula:
HOOC(CH2)12COOH
CAS No.:
821-38-5
EINECS No.:
212-476-9
Molecular weight:
258
Appearance:
White powder/flake
Tetradecanedioic Acid:
≥98.5%
Total dibasic acids:
≥99.0%
Melting point:
125℃-128℃
Ash:
≤30ppm
Application
High-end synthetic perfume, powder coating, polyamide resin, hot melt adhesive, high-end lubricant, plasticizer, etc.
DC16
+
Hexadecanedioic acid
Name:
Hexadecanedioic acid, DC16
Molecular formula:
HOOC(CH2)14COOH
CAS No.:
505-54-4
EINECS No.:
208-013-5
Molecular weight:
286
Appearance:
White powder
Hexadecanedioic acid:
≥98.0%
Total dibasic acids:
≥99.0%
Melting point:
124℃-127℃
Application:
Long chain polyamide, lubricant, medicine, perfume, etc.
DC18
+
Octadecandioic acid
Name:
Octadecandioic acid, DC18
Molecular formula:
HOOC(CH2)16COOH
CAS No.:
871-70-5
EINECS No.:
442-490-2
Molecular weight:
314
Appearance:
White powder
Octadecandioic acid:
>97.0%
Total dibasic acids:
98.0%-102.0%
Melting point:
123℃-127℃
Application:
Long chain polyamide, pharmaceutical intermediate, etc.
Puremix
+
Puremix
Name:
Puremix
Introduction:
Puremix is a mixture of different diacids in specific propotions and formulations. It can provide excellent corrosion inhibition performance in coolants and metalworking fluids. Currently, two types products, Puremix and PuremixⅡ, are available.
Appearance:
White powder, white/off-white flake
Total dibasic acids:
≥98.0%
Specific gravity:
1.02g/cm3
Application:
Corrosion inhibition for metalworking fluids, corrosion for coolants, etc.
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