Chemical substance record

Ammonium polyphosphate

68333-79-9(H₄NO₃P)n.H₁₆N₄O₇P₂343.107 g/mol

Salt and Compound WithChEBI source record

An inorganic ammonium salt of polyphosphate. It is used as a flame retardant and as a fertilizer. The chain length (n) of this polymer is variable and can be linear or branched. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values

CAS number	68333-79-9	ChEBI ↗
Molecular formula	(H₄NO₃P)n.H₁₆N₄O₇P₂	ChEBI ↗
Molar mass	343.107 g/mol	ChEBI ↗
Monoisotopic mass	343.0423 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:147408	ChEBI ↗

Names & structural identifiers

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Source preferred name

ammonium polyphosphate

InChIKey

GUSFEBGYPWJUSS-UHFFFAOYSA-N

SMILES

O=P([O-])([O-])OP(=O)([O-])OP(=O)([O-])[O-].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+]

InChI

InChI=1S/5H3N.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h5*1H3;(H,7,8)(H2,1,2,3)(H2,4,5,6)

Names & synonyms

Albaplas AP 95Amgard CLAmgard MCAmgard TRAntiblaze MCAntiblaze MCMAP 422AP 462APP 422Budit 3076Budit 3076DCBudit 3077

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

inorganic ammonium saltChEBI parent class · 147406 ↗

inorganic salt inorganic molecular entity

Roles recorded in ChEBI

fertilizerfood emulsifierflame retardant

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass

Amount

Input unit

Equivalent amount

0.00291454 mol

Uses 343.107 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Research & patent references

Selected source associations

Improved Flame-Retardant and Ceramifiable Properties of EVA Composites by Combination of Ammonium Polyphosphate and Aluminum Hydroxide. ↗Polymers · 2019 Jan 12 · PMID 30960109

Mechanically Robust, Flame-Retardant Poly(lactic acid) Biocomposites via Combining Cellulose Nanofibers and Ammonium Polyphosphate. ↗ACS omega · 2018 May 31 · PMID 31458762

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:147408

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.

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