C21 dicarboxylic acid (CAS No. 53980-88-4), also called 5(or 6)-Carboxy-4-hexyl-2- cyclohexene-octanoic acid or 2,2-dimethylpropionyl bromide, containing about 10% oleic- and other fatty acid which is a multifaceted dicarboxylic acid (diacid) ideal for co-emulsification, corrosion inhibition, lubrication and wetting in soluble, semisynthetic and synthetic oils. it can be the equivalent to DIACID 1550. Made from sustainable materials and renewable resources, NOVACID DC21 is resistant to bioactivity, yet still biodegradable. NOVACID DC21 has been known globally in the metalworking fluid (MWF) industry as an excellent co-emulsifier in soluble oil and in semisynthetic metalworking formulations. Novacid DC21 can be replacement of DIACID 1550.

- Corrosion Inhibitors
- Lubricants and metal working fluids
- Emulsifiers
- Epoxy resins and epoxy hardeners
- Polyamides
- Amine derivatives and Amine salts
- Polyester synthesis
- Cleaning agent
- Textile cleanser / Household cleaner
- Fabric Softener
- Polishing agent
Recommended Dosage:
If the formula contains 5% coupling agent, it can be completely replaced by 2% NOVACID DC21. At the same time, NOVACID DC21 can replace boric acid compounds at a ratio of 1:3, Such as 3% boric acid compounds in the formula can be replaced by 1% NOVACID DC21.

- Packaging Options
- Industrial Grade: 200kg net weight per steel-plastic drum
- Storage Requirements
Store in a cool, dry, and well-ventilated warehouse, away from direct sunlight, heat sources, and incompatible substances (e.g., strong oxidizers, bases).
Shelf life is 12 months when stored under recommended conditions.
- Handling Precautions
Wear protective gloves and goggles during operation to avoid direct contact with skin and eyes. In case of accidental contact, rinse thoroughly with plenty of water and seek medical advice if necessary.