Ácido cítrico

meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)

About This Item

Fórmula linear:

HOC(COOH)(CH₂COOH)₂

CAS Number:

77-92-9

Peso molecular:

192.12

Beilstein:

782061

Número CE:

201-069-1

Número MDL:

MFCD00011669

Código UNSPSC:

12352106

eCl@ss:

39021801

ID de substância PubChem:

329752978

NACRES:

NA.21

Nível de qualidade

200

Ensaio

99.5-100.5% (based on anhydrous substance)

Formulário

grit

qualidade

anhydrous
meets analytical specification of Ph. Eur., BP, USP, E330

Lim. expl.

8 %, 65 °F

Impurezas

residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.5% water (Karl Fischer)

resíduo de ignição

≤0.05% (as SO₄)

pKa 

(1) 3.13, (2) 4.76, (3) 6.4

pf

153-159 °C (lit.)

solubilidade

water: 383 g/L at 25 °C

traços de ânion

chloride (Cl^-): ≤50 ppm
oxalate (as oxalic acid): ≤100 ppm
sulfate (SO₄^2-): ≤100 ppm

traços de cátion

As: ≤1 ppm
Ca: ≤200 ppm
Cu: ≤10 ppm
Fe: ≤10 ppm
Hg: ≤1 ppm
Pb: ≤0.5 ppm
Zn: ≤10 ppm

adequação

complies for appearance of solution
complies for reaction against H₂SO₄

cadeia de caracteres SMILES

OC(=O)CC(O)(CC(O)=O)C(O)=O

InChI

1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)

chave InChI

KRKNYBCHXYNGOX-UHFFFAOYSA-N

Informações sobre genes

human ... SRC(6714)

Aplicação

Citric acid was used as a test reagent for studying whether the novel pyridazinylpiperazine analog TPRV-1 inhibitor can reduce cough reflex induced by citric acid and capsaicin in guinea pig.[1]

Ações bioquímicas/fisiológicas

Citric acid in dietary form can augments absorption of aluminium in antacids.[2] It also facilitates the phytoremediation of heavy metal contaminated soil and can transform cadmium into more transportable forms.[3]