C12H18Ca3O18
570.5 g/mol
Food AdditiveWarning
Calcium citrate tetrahydrate
CAS5785-44-4
Category
Food Additive
Compound Class
Organic Acid
Primary Use
Calcium supplement and food fortifier
Calcium citrate tetrahydrate is a calcium salt of citric acid commonly used as a food additive (E333) and as a calcium supplement and food fortifier. It serves primarily as a preservative and flavor agent in food products, similar to sodium citrate.
Calcium supplement in food productsFood fortifier for calcium enrichmentPreservative and flavor agent (E333)
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongStructure SimilarSimilarity 1.00
Zinc citrate dihydrate
CAS5990-32-9
pharmaceutical raw material
StrongStructure SimilarSimilarity 1.00
Potassium citrate monohydrate
CAS6100-05-6
Sequestrant, emulsifier, and stabilizer
StrongStructure SimilarSimilarity 1.00
Trimagnesium dicitrate
CAS7779-25-1
pharmaceutical raw material
StrongStructure SimilarSimilarity 1.00
Bismuth subcitrate
CAS57644-54-9
Pharmaceutical raw material for ulcer therapy
ReferenceSame Category
Calcium stearoyl lactylate
CAS5793-94-2
food emulsifier
ReferenceSame Category
Asparagine monohydrate
CAS5794-13-8
nutritional supplement and amino acid
ReferenceSame Category
Biotin
CAS58-85-5
dietary supplement and nutrient
ReferenceSame Category
Aldehydo-D-xylose
CAS58-86-6
flavoring agent and nutritive sweetener
Safety Reference
Warning
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for Calcium citrate tetrahydrate (CAS 5785-44-4) is 2918.15.
HS code (international, 6-digit)
2918.15
EU CN code (8-digit)
2918 15 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
tricalcium;bis(2-hydroxypropane-1,2,3-tricarboxylate);tetrahydrate
InChIKey
LNIZKKFWMDARJV-UHFFFAOYSA-H
SMILES
C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.O.O.O.O.[Ca+2].[Ca+2].[Ca+2]
Synonyms (11)
- Calcium citrate (USP)
- CALCIUM (AS CITRATE)
- CALCIUM CITRATE [MART.]
- Calcium Cltrate tetrahydrate
- Calcium citrate
- Calcium citrate tetrahydrate
- Citracal (TN)
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