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1134368

USP

Citric acid

United States Pharmacopeia (USP) Reference Standard

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About This Item

Linear Formula:
HOC(COOH)(CH2COOH)2
CAS Number:
Molecular Weight:
192.12
Beilstein/REAXYS Number:
782061
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

citric acid

expl. lim.

8 %, 65 °F

manufacturer/tradename

USP

pKa 

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

mp

153-159 °C (lit.)

solubility

water: 383 g/L at 25 °C

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

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)

InChI key

KRKNYBCHXYNGOX-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets, has been developed and issued under the Authority of the issuing Pharmacopoeia.

For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Citric acid USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Anhydrous Citric Acid
  • Citric Acid Monohydrate
  • Magnesium Carbonate, Citric Acid, and Potassium Citrate for Oral Solution
  • Monoglyceride Citrate
  • Powdered Garcinia Hydroxycitrate Extract
  • Anticoagulant Citrate Phosphate Dextrose Solution
  • Potassium Citrate Extended-Release Tablets

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Powdered Garcinia Hydroxycitrate Extract
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 36(3), 5014-5014 (2020)
Tricitrates Oral Solution
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 39(3), 4504-4504 (2018)
Monoglyceride Citrate
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 30(6), 5891-5891 (2018)
Calcium Citrate Malate
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 43(2), 694-694 (2018)
Magnesium Carbonate, Citric Acid, and Potassium Citrate for Oral Solution
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 39(3), 2711-2711 (2018)

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