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C0706

Sigma-Aldrich

Citric acid monohydrate

BioXtra, ≥99.5%

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Linear Formula:
HOC(COOH)(CH2COOH)2 · H2O
CAS Number:
5949-29-1
Molecular Weight:
210.14
Beilstein:
4018641
EC Number:
201-069-1
MDL number:
MFCD00149972
UNSPSC Code:
12161700
PubChem Substance ID:
24892269
NACRES:
NA.25

product line

BioXtra

Quality Level

200

Assay

≥99.5%

form

powder

impurities

≤0.002% Phosphorus (P)
≤0.005% Insoluble matter

ash

≤0.02%

pH

1.85 (25 °C, 50 g/L)

pKa 

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

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

SMILES string

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

InChI

1S/C6H8O7.H2O/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);1H2

InChI key

YASYEJJMZJALEJ-UHFFFAOYSA-N

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General description

Citric acid is one of the fruits acids. It is present in various citrus fruits and vegetables.

Application

Citric acid monohydrate has been used:
  • as carbon source of carbon nanodot synthesis
  • in the preparation of citric acid monohydrate solution/buffer of pH-6.0 for tissue sample preparation
  • to treat various samples in citric acid solubilisation technique

Biochem/physiol Actions

Citric acid plays a major role in textile, food, pharmaceutical, metal and chemical industries. Melting citric acid monohydrate can give rise to itaconic anhydride. The crystals of citric acid monohydrate has the ability to preserve water up to 56 degree celsius.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319,H335

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 1

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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An investigation into the microflora of heroin
McLauchlin J, et al.
Journal of Medical Microbiology, 51(11), 1001-1008 (2002)
Ove J R Gustafsson et al.
Rapid communications in mass spectrometry : RCM, 27(6), 655-670 (2013-02-19)
Matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry provides the means to map the in situ distribution of tryptic peptides in formalin-fixed clinical tissue samples. The ability to analyze clinical samples is of great importance to further developments in the imaging
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