Copper sulfate pentahydrate is an inorganic salt hydrate used as a fungicide and pesticide active ingredient in agricultural crop protection. It is also employed in laboratory reagents and as an antidote to phosphorus poisoning.
Fungicide and pesticide active ingredientComponent of Fehling's solution for reducing sugar testingAntidote to phosphorus
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.
Safety Reference
Corrosive
Harmful
Health Hazard
Environmental Hazard
Danger
H302Harmful if swallowed
H318
Customs Tariff Classification
The international HS code for Copper sulfate pentahydrate (CAS 7758-99-8) is 2833.25.
HS code (international, 6-digit)
2833.25
EU CN code (8-digit)
2833 25 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
copper;sulfate;pentahydrate
InChIKey
JZCCFEFSEZPSOG-UHFFFAOYSA-L
SMILES
O.O.O.O.O.[O-]S(=O)(=O)[O-].[Cu+2]
Synonyms (41)
Cupric sulfate (USP)
Blue Vicking
Blue copper AS
Bluestone
COPPER (AS CUPRIC SULFATE)
COPPER SULFATE
COPPERFINE-ZINC
CUPRUM SULPHURICUM
Calcanthite
Caswell No. 256
Copper sulfate pentahydrate
Copper(II) Sulfide Powder
Cupric Sulfate
Cupric sulfate pentahydrate
Cupric sulphate 5-hydrate
Kupfersulfat-pentahydrat
Kupfervitriol
Kupfervitriol [German]
NATURAL CHALCANTHITE
Salzburg vitriol
Sentry AQ mardel coppersafe
Triangle
Vencedor
copper sulphate pentahydrate
copper sulphate(5.H2O)
Causes serious eye damage
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H315Causes skin irritation
H319Causes serious eye irritation
H290May be corrosive to metals
H314Causes severe skin burns and eye damage
H411Toxic to aquatic life with long lasting effects
H317May cause an allergic skin reaction
H341Suspected of causing genetic defects
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H373May cause damage to organs through prolonged or repeated exposure
