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25102

Sigma-Aldrich

Ammonium citrate dibasic

puriss., ≥98%

Synonym(s):

Ammonium hydrogencitrate, Citric acid ammonium salt, Diammonium hydrogen citrate

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About This Item

Linear Formula:
HOC(CO2H)(CH2CO2NH4)2
CAS Number:
3012-65-5
Molecular Weight:
226.18
Beilstein:
4925760
EC Number:
221-146-3
MDL number:
MFCD00013068
UNSPSC Code:
12352100
PubChem Substance ID:
329752776
NACRES:
NA.22

vapor density

1.8 (vs air)

Quality Level

200

grade

puriss.

Assay

≥98%

impurities

≤0.001% heavy metals (as Pb)

pH

4.5-5.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤300 mg/kg

cation traces

Fe: ≤10 mg/kg

SMILES string

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

InChI

1S/C6H8O7.2H3N/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);2*1H3

InChI key

YXVFQADLFFNVDS-UHFFFAOYSA-N

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Application

Ammonium citrate dibasic is generally used as a component of matrix solution in matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry analysis. It can also be used as both the carbon and nitrogen source to synthesize fluorescent nitrogen-doped carbon nanoparticles (CNPs).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

25102-6X500G-R:
25102-1KG-R:
25102-6X1KG-R:
25102-BULK-R:
25102-25KG-H:
25102-BULK-H:
25102-VAR-R:
25102-25KG-R:
25102-500G-R:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL8215
BCCL5600
BCCJ6312
BCCJ6311
BCCJ6310

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Microwave-assisted ultrafast and facile synthesis of fluorescent carbon nanoparticles from a single precursor: preparation, characterization and their application for the highly selective detection of explosive picric acid.
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Journal of Materials Chemistry, 4(11), 4161-4171 (2016)
Study of matrix and polymer substrate in MALDI-TOF mass spectrometry of DNA.
Kim Y and Hurst G B
Microchemical Journal, Devoted to the Application of Microtechniques in All Branches of Science, 70(3), 219-228 (2001)
Dmitri V Zagorevskii et al.
Journal of the American Society for Mass Spectrometry, 17(9), 1265-1270 (2006-07-01)
Oligonucleotides synthesized on a montmorillonite catalyst were analyzed directly. By mixing the catalyst with a matrix (2,4,6-trihydroxyacetophenone or 6-aza-2-thiothymine) and dibasic ammonium citrate, higher molecular weight products were detected compared with "classical" methods such as gel electrophoresis and HPLC with
Accurate characterization of carcinogenic DNA adducts using MALDI tandem time-of-flight mass spectrometry.
Barnes C A and Chiu N H
International Journal of Mass Spectrometry, 279(2-3), 170-175 (2009)
Virginia De Cesare et al.
Proceedings of the National Academy of Sciences of the United States of America, 118(4) (2021-01-23)
The reversibility of ubiquitination by the action of deubiquitinating enzymes (DUBs) serves as an important regulatory layer within the ubiquitin system. Approximately 100 DUBs are encoded by the human genome, and many have been implicated with pathologies, including neurodegeneration and
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