Molekula
Sodium citrate dihydrate - BP/USP spec.
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 citrate dihydrate (BP/USP spec) is a white, crystalline powder used as an anticoagulant in blood collection tubes and as a buffering agent in pharmaceuticals and food products. It is available in high purity with specifications meeting British Pharmacopoeia and United States Pharmacopeia standards. CAS: 6132-04-3, Molecular formula: C6H5Na3O7 · 2H2O, Molecular weight: 294.10, Storage: Ambient, Signal word: None. Molekula supplies Sodium citrate dihydrate - BP/USP spec 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 |
| Water | 11.0 - 13.0% |
| Heavy metals | ≤10 ppm |
| Identification | Conforms to reference |
| Chloride (Cl-) | ≤0.005% |
| Acidity / Alkalinity | Conforms to USP/BP |
| Content | ≥99.0% |
| Clarity in Solution | Conforms to USP/BP |
| Readily Carbonisable Substances | Conforms to USP/BP |
| Pyrogens | Conforms to USP/BP |
| Sulphates (SO4)(2-) | ≤0.15% |
| Tartrate | Conforms to USP/BP |
| Oxalate (Oxalic acid) | ≤0.03% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90028184 |
| CAS Number | 6132-04-3 |
| Molecular Formula | C6H5Na3O7 · 2H2O |
| Molecular Weight | 294.10 |
| SMILES | C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.O.O.[Na+].[Na+].[Na+] |
| REACH Code | Y113 |
| Tariff Code | 2918150019 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
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
No alternate names recorded for this product.
Frequently asked questions
What is sodium citrate dihydrate (BP/USP spec.) used for?
It is commonly used as an anticoagulant in blood collection tubes and as a buffer in pharmaceutical and food applications.
What is the chemical formula and molecular weight of sodium citrate dihydrate?
The formula is C6H5Na3O7 · 2H2O with a molecular weight of 294.10 g/mol.
How should sodium citrate dihydrate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available for this product?
This product is available in BP/USP specification grade, suitable for pharmaceutical and laboratory use.
Can Molekula supply sodium citrate dihydrate in bulk?
Yes, Molekula can supply sodium citrate dihydrate in bulk quantities—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); 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.