Molekula
Sodium dihydrogen citrate anhydrous
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
Sodium dihydrogen citrate anhydrous is a sodium salt of citric acid used as a pH adjuster and buffer in pharmaceuticals, food, and industrial applications. It is a white, crystalline powder with a molecular weight of 214.11 g/mol, a CAS number of 18996-35-5, and a molecular formula of HOC(COONa)(CH2COOH)2. It is stable at ambient storage conditions and carries a warning signal word. Molekula supplies Sodium dihydrogen citrate anhydrous 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.
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100 g — $56.10 per pack
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 crystalline powder |
| Heavy metals | ≤5ppm |
| Identification | Conforms to reference |
| pH | 3.5 - 4.0 |
| Loss on Drying | ≤0.4% |
| Chloride (Cl-) | ≤50ppm |
| Assay | 99 - 101% |
| Lead (Pb) | ≤2ppm |
| Arsenic (As) | ≤1ppm |
| Sulphates (SO4)(2-) | ≤150ppm |
| Oxalate (Oxalic acid) | ≤100ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 11207603 |
| CAS Number | 18996-35-5 |
| IUPAC Name | sodium 3-carboxy-3,5-dihydroxy-5-oxopentanoate |
| Molecular Formula | HOC(COONa)(CH2COOH)2 |
| Molecular Weight | 214.11 |
| Exact Mass | 214.0089 |
| SMILES | C(C(=O)O)C(CC(=O)[O-])(C(=O)O)O.[Na+] |
| InChIKey | HWPKGOGLCKPRLZ-UHFFFAOYSA-M |
| InChI | InChI=1S/C6H8O7.Na/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);/q;+1/p-1 |
| PubChem CID | 23666341 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29181510 |
| Tariff Code | 2918150090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H319 Causes serious eye irritation
Precautionary statements
- P232 Protect from moisture
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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, 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
- 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, monosodium salt
- 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, sodium salt (1:1)
- Citric acid monosodium salt
- E 331I
- Monosodium citrate
- Monosodium Citrate Anhydrous
- sodium 3,4-dicarboxy-3-hydroxybutanoate
- Sodium citrate monobasic
- Sodium dihydrogen citrate
- sodium;3-carboxy-3,5-dihydroxy-5-oxopentanoate
Frequently asked questions
What is sodium dihydrogen citrate anhydrous used for?
It is commonly used as a pH adjuster and buffer in pharmaceuticals, food, and beverage formulations.
What is the chemical formula and molecular weight?
The formula is HOC(COONa)(CH2COOH)2 with a molecular weight of 214.11 g/mol.
How should sodium dihydrogen citrate anhydrous be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available?
Available in reagent grade; custom grades may be available upon request.
Can Molekula supply it in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
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.