Monosodium tartrate

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Names
IUPAC name Sodium hydrogen tartrate
Systematic IUPAC name Sodium 3-carboxy-2,3-dihydroxypropionate
Other names Sodium bitartrate; E335
Identifiers
CAS Number	526-94-3 Y
3D model (JSmol)	Interactive image
ChemSpider	10239 N
ECHA InfoCard	100.007.638
EC Number	238-470-6
PubChem CID	23690454
UNII	75E63I9H07 Y
CompTox Dashboard (EPA)	DTXSID40948715 DTXSID70883423, DTXSID40948715
InChI InChI=1S/C4H6O6.Na/c5-1(3(7)8)2(6)4(9)10;/h1-2,5-6H,(H,7,8)(H,9,10);/q;+1/p-1 N Key: NKAAEMMYHLFEFN-UHFFFAOYSA-M N InChI=1/C4H6O6.Na/c5-1(3(7)8)2(6)4(9)10;/h1-2,5-6H,(H,7,8)(H,9,10);/q;+1/p-1 Key: NKAAEMMYHLFEFN-REWHXWOFAB
SMILES C(C(C(=O)[O-])O)(C(=O)O)O.[Na+]
Properties
Chemical formula	C4H5NaO6
Molar mass	172.07 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Monosodium tartrate or sodium bitartrate is a sodium acid salt of tartaric acid. As a food additive it is used as an acidity regulator and is known by the E number E335. As an analytical reagent, it can be used in a test for ammonium cation which gives a white precipitate.

See also[]

• Sodium tartrate, the disodium salt of tartaric acid

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