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791725

Sigma-Aldrich

Acido citrico

anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5%

Sinonimo/i:

2-Hydroxy-propane-1,2,3-tricarboxylic acid

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About This Item

Formula condensata:
HOC(COOH)(CH2COOH)2
Numero CAS:
Peso molecolare:
192.12
Beilstein:
782061
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.21

Grado

ACS reagent
anhydrous

Livello qualitativo

Nome Commerciale

Redi-Dri

Saggio

≥99.5%

Forma fisica

crystals

Qualità

free-flowing

Limite di esplosione

8 %, 65 °F

Impurezze

Substances carbonizable by hot sulfuric acid, passes test

Residuo alla calcinazione

≤0.02%

pKa 

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

Punto di fusione

153-159 °C (lit.)

Anioni in tracce

chloride (Cl-): ≤0.001%
oxalate (C2O42-): passes test (limit about 0.003%)
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.002%

Cationi in tracce

Fe: ≤3 ppm
Pb: ≤2 ppm

Stringa SMILE

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)
KRKNYBCHXYNGOX-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

Citric acid also called 2-hydroxy-propane-1,2,3-tricarboxylic acid, is a component of the tricarboxylic acid cycle in all organisms. Industrial production of citric acid use fungal, yeast and citrus fruit as the major source. Aspergillus niger is majorly used for citric acid production by fermentation Manganese inhibits fermentative production of citric acid Oral supplementation of citric acid promotes tricarboxylic acid cycle and oxidative phosphorylation in mitochondria, attenuating physical fatigue.

Applicazioni

Citric acidhas been used as a component of citrate buffer and Fe-free sauton′s medium. It has been used in hybridization chain reaction buffer for preequilibration of coverslips for testes sections.

Note legali

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Pittogrammi

Exclamation mark

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Eye Irrit. 2 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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SAFC

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Acido citrico

Biochemical studies of citric acid production and accumulation by Aspergillus niger mutants
Gupta S and Sharma CB
World Journal of Microbiology & Biotechnology, 18(5), 379-383 (2002)
A comprehensive roadmap of murine spermatogenesis defined by single-cell RNA-seq
Green CD, et al.
Developmental Cell, 46(5), 651-667 (2018)
Methylene blue exerts a neuroprotective effect against traumatic brain injury by promoting autophagy and inhibiting microglial activation
Zhao M, et al.
Molecular Medicine Reports, 13(1), 13-20 (2016)
Biotechnological production of citric acid
Max B, et al.
Brazilian Journal of Microbiology, 41(4), 862-875 (2010)
Effects of citric acid and L-carnitine on physical fatigue
Sugino T, et al.
Journal of Clinical Biochemistry and Nutrition, 41(3), 224-230 (2007)

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