Molekula
Azelaic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Azelaic acid is a saturated dicarboxylic acid used in dermatological treatments for acne and rosacea, and as a research reagent in organic synthesis. Industrially, it serves as a building block for alkyd resins, polyamides, low-temperature plasticizers, polyester adhesives, lacquers and urethane elastomers. It appears as a white crystalline powder with a molecular weight of 188.22 g/mol, a molecular formula of HOOC(CH2)7COOH, and a CAS number of 123-99-9. It is stable at ambient storage conditions and carries a warning signal word due to potential skin and eye irritation.
Molekula supplies Azelaic acid at ≥ 99.0% purity in 100 g packs, from £74.40 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £62.00 per pack ex VAT · £74.40 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white powder |
| Heavy metals | ≤ 0.001% |
| Chloride (Cl-) | ≤ 0.005% |
| Assay | ≥ 99.0% |
| Iron (Fe) | ≤ 0.002% |
| Sulphates (SO4)(2-) | ≤ 0.025% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 210 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Leaflets or needles |
| Melting Point | 106.5 °C |
| Boiling Point | 286.5 °C at 1.00E+02 mm Hg |
| Density | 1.225 g/cm³ at 25 °C |
| Water Solubility | 2.4 g/L at 20 °C |
| Solubility (other solvents) | Slightly soluble in ethy ether, benzene, DMSO; soluble in ethanol |
| Vapour Pressure | 1.07 × 10⁻⁸ mmHg at 25 °C |
| Refractive Index | 1.4303 |
| pKa | pKa = 4.55 (at 25 °C) |
| log P (octanol/water) | 1.57 |
Source: PubChem CID 2266 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 31437119 |
| CAS Number | 123-99-9 |
| IUPAC Name | nonanedioic acid |
| EC Number | 204-669-1 |
| Molecular Formula | HOOC(CH2)7COOH |
| Molecular Weight | 188.22 |
| Exact Mass | 188.1049 |
| SMILES | C(CCCC(=O)O)CCCC(=O)O |
| InChIKey | BDJRBEYXGGNYIS-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H16O4/c10-8(11)6-4-2-1-3-5-7-9(12)13/h1-7H2,(H,10,11)(H,12,13) |
| PubChem CID | 2266 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29171300 |
| Tariff Code | 2917139090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P332+313 IF skin irritation occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1,7-Heptanedicarboxylic acid
- 1,9-Nonanedioic acid
- Anchoic acid
- Azelex
- Emerox 1110
- Finacea
- Heptanedicarboxylic acid
- Lepargylic acid
- NONANEDIOIC ACID
- Skinoren
Frequently asked questions
What is azelaic acid used for?
Azelaic acid is commonly used in dermatological treatments for acne and rosacea, and it also serves as a precursor in the synthesis of polyamides and other specialty chemicals.
What is the chemical formula and molecular weight of azelaic acid?
The formula is HOOC(CH2)7COOH with a molecular weight of 188.22 g/mol.
How should azelaic acid be stored?
Azelaic acid should be stored at ambient temperature, protected from moisture and light.
What grade of azelaic acid does Molekula supply?
Molekula supplies azelaic acid as a white to off-white powder with an assay of ≥ 99.0% and specified limits for heavy metals, chloride, iron and sulphates; custom grades are available upon request.
Can Molekula supply azelaic acid in bulk?
Yes, Molekula can supply azelaic acid in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of azelaic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Where can I buy Azelaic acid?
Directly from Molekula, which lists Azelaic acid in 100 g packs from £74.40 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.