H3O3P
81.996 g/mol
AgrochemicalDanger
Phosphonic acid
CAS13598-36-2EC237-066-7
Category
Agrochemical
Compound Class
Other
Primary Use
Soil fertilizer intermediate
Phosphonic acid is a phosphorus-containing inorganic compound primarily used as an intermediate in the production of soil fertilizers. It serves as a chemical component in certain consumer and automotive products.
Soil fertilizer intermediateComponent in auto products
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.
Sourcing Phosphonic acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
ReferenceSame Category
Triflusulfuron
CAS135990-29-3
herbicide for broad-leaved weeds
ReferenceSame Category
Dipropyl isocinchomeronate
CAS136-45-8
insect repellent
ReferenceSame Category
Urea, N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N'-(1,1-dimethylethyl)-
CAS136337-67-2
urea herbicide intermediate
ReferenceSame Category
3,5-dichloro-2,4,6-trifluorobenzoic acid
CAS13656-36-5
agrochemical intermediate
Related Reading
Safety Reference
Danger
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H290May be corrosive to metals
H318Causes serious eye damage
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Phosphonic acid (CAS 13598-36-2) is 2811.19.
HS code (international, 6-digit)
2811.19
EU CN code (8-digit)
2811 19 80
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
phosphonic acid
InChIKey
ABLZXFCXXLZCGV-UHFFFAOYSA-N
SMILES
OP(=O)O
Synonyms (2)
- Phosphonic acid
- Phosphorus trihydroxide
Sourcing Phosphonic acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.