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Home/Compounds/Food Additive/Sodium dihydrogen phosphate
H2NaO4P
119.977 g/mol
Food AdditiveWarning

Monosodium phosphate

CAS89140-32-9EC231-449-2
Category
Food Additive
Compound Class
Inorganic Salt
Primary Use
pH buffer and food additive

Monosodium phosphate is an inorganic salt composed of sodium and dihydrogen phosphate ions, commonly used as a pH buffer and food additive. It serves to adjust and stabilize acidity in various food products and industrial applications.

pH bufferfood additive

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

StrongSame Parent

Lithium dihydrogen phosphate

CAS13453-80-0

Lithium battery electrolyte precursor

StrongSame Parent

Dihydratemonobasicsodium phosphate

CAS13472-35-0

food additive and sequestrant

StrongSame Parent

Monosodium phosphate

CAS7558-80-7

pH buffer and cleaning agent

StrongSame Parent

Monobasic ammonium phosphate

CAS7722-76-1

Fertilizer ingredient

StrongStructure SimilarSimilarity 1.00

Monohydratemonobasiccalcium phosphate

CAS10031-30-8

Food acidulant and leavening agent

StrongStructure SimilarSimilarity 1.00

Monohydratemonobasicsodium phosphate

CAS10049-21-5

Food additive acidulant and sequestrant

ReferenceSame Category

Gluconolactone

CAS90-80-2

acidity regulator and sequestrant

ReferenceSame Category

Carrageenan

CAS9000-07-1

emulsifying and gelling agent

Safety Reference

Harmful
Harmful
Warning
H319Causes serious eye irritation
Identifiers
IUPAC Name

sodium dihydrogen phosphate

InChIKey

AJPJDKMHJJGVTQ-UHFFFAOYSA-M

SMILES

OP(=O)(O)[O-].[Na+]

Synonyms (58)
  • E339
  • Sodium phosphate monobasic, USP grade
  • Sodium phosphate monobasic, USP, 98.0-103.0%
  • Sodium phosphate monobasic, meets USP testing specifications, anhydrous
  • Sodium phosphate, monobasic (USP)
  • Acid sodium phosphate
  • E-339(I)
  • Ionosol B
  • Ionosol Mb
  • Ionosol T
  • Monobasic sodium phosphate
  • Monosodium hydrogen phosphate
  • Monosodium monophosphate
  • Monosodium orthophosphate
  • Monosodium phosphate
  • Monosorb XP-4
  • Phosphoric acid, sodium salt
  • Primary sodium phosphate
  • SODIUM DIHYDROGEN PHOSPHATE
  • Sodium acid phosphate
  • Sodium biphosphate anhydrous
  • Sodium phosphate (Na(H2PO4))
  • Sodium phosphate, monobasic
  • Sodium primary phosphate
  • natriumdihydrogen-phosphate
  • sodium dihydrogenphoshate
  • sodium dihydrogenphospate
  • sodium dihydrogenphosphat