Molekula
DL-Tartaric acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
DL-Tartaric acid is a white crystalline organic acid used in food, pharmaceuticals, and chemical synthesis. It serves as an acidulant. In food and beverage formulations it also functions as a sequestrant, a flavouring agent and a synergist that enhances the effectiveness of antioxidants. Available in powder form with a purity of ≥99.0% (HPLC), it has a molecular weight of 150.09 g/mol, a CAS number of 133-37-9, and is stable at ambient storage conditions. Molekula supplies DL-Tartaric acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
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.
-
500 g — £54.50 per pack ex VAT · £65.40 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 |
|---|---|
| Melting Point | 200-206°C |
| Heavy metals | ≤0.001% |
| Loss on Drying | ≤0.5% |
| Residue on Ignition | ≤0.1% |
| Content | ≥98.5% |
| Oxidisable Matter | Passed |
| Arsenic (As) | ≤0.0002% |
| Description | white crystalline powder |
| Sulphates (SO4)(2-) | ≤0.04% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Solubility (other solvents) | Soluble in water and alcohol; 1 gm in 0.8 ml water |
Source: PubChem CID 875 (Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 20981132 |
| CAS Number | 133-37-9 |
| IUPAC Name | 2,3-dihydroxybutanedioic acid |
| Molecular Formula | C4H6O6 |
| Molecular Weight | 150.09 |
| Exact Mass | 150.0164 |
| SMILES | C(C(C(=O)O)O)(C(=O)O)O |
| InChIKey | FEWJPZIEWOKRBE-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10) |
| PubChem CID | 875 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2918.12.00.00 |
| Tariff Code | 2918120000 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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.
Synonyms
- 2,3-Dihydroxybutanedioic acid
- BUTANEDIOIC ACID, 2,3-DIHYDROXY-
- DL-Tartrate
- GlyTouCan:G35198MQ
- Paratartaric acid
- Paratartaric aicd
- Racemic acid
- Racemic tartaric acid
- Traubensaure
- Uvic acid
Frequently asked questions
What is DL-Tartaric acid used for?
DL-Tartaric acid is commonly used in food and beverage applications as an acidulant, in pharmaceuticals, and in chemical synthesis.
What is the chemical formula and molecular weight of DL-Tartaric acid?
The chemical formula is C4H6O6 and the molecular weight is 150.09 g/mol.
How should DL-Tartaric acid be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of DL-Tartaric acid does Molekula supply?
Molekula supplies food-grade and technical-grade DL-Tartaric acid, depending on the application.
Can Molekula supply DL-Tartaric acid in bulk?
Yes, Molekula can supply DL-Tartaric acid in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a DL-Tartaric acid order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.