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  7. Calconcarboxylic acid, Thermo Scientific Chemicals

Calconcarboxylic acid, Thermo Scientific Chemicals

Product Code. 11475447
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Quantity:
10 g
50 g

Description

Calconcarboxylic acid is used as an indicator for calcium titrations with ethylenediaminetetraacetic acid (EDTA) in the presence of magnesium.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Calconcarboxylic acid is used as an indicator for calcium titrations with ethylenediaminetetraacetic acid (EDTA) in the presence of magnesium.

Solubility
Soluble in water, ethanol, sodium hydroxide and methanol.

Notes
Incompatible with strong oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 3737-95-9
Molecular Formula C21H14N2O7S
Molecular Weight (g/mol) 438.41
MDL Number MFCD00004078
InChI Key ULIVOAKVRBXKKS-PYCFMQQDSA-N
Synonym calconcarboxylic acid, patton-reeder indicator, calconcarbonic acid, calcon 3-carboxylic acid, patton and reeder's indicator, 2-hydroxy-1-2-hydroxy-4-sulfo-1-napthylazo-3-naphthoic acid, 2,2'-dihydroxy-4'-sulpho-1,1'-azonaphthalene-3-carboxylic acid, 2-naphthalenecarboxylic acid, 3-hydroxy-4-2-hydroxy-4-sulfo-1-naphthalenyl azo, nn
PubChem CID 5895210
IUPAC Name 3-hydroxy-4-[(2Z)-2-(2-oxo-4-sulfonaphthalen-1-ylidene)hydrazinyl]naphthalene-2-carboxylic acid
SMILES C1=CC=C2C(=C1)C=C(C(=C2NN=C3C4=CC=CC=C4C(=CC3=O)S(=O)(=O)O)O)C(=O)O

Specifications

Melting Point ∼300°C (decomposition)
Quantity 10 g
Beilstein 727492
Solubility Information Soluble in water,ethanol,sodium hydroxide and methanol.
Formula Weight 438.42
Chemical Name or Material Calconcarboxylic acid

Safety and Handling

compliance-icons
Product Identifier
  • Calconcarboxylic acid, 94% (dry wt.), water <10%
 Signal Word
  • Warning
 Hazard Category
  • Serious eye damage/eye irritation Category 2
  • Specific target organ toxicity Category 3
  • Skin corrosion/irritation Category 2
 Hazard Statement
  • H315-Causes skin irritation.
  • H319-Causes serious eye irritation.
  • H335-May cause respiratory irritation.
 Precautionary Statement
  • P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • P405-Store locked up.
  • P501-Dispose of contents/container to in accordance with local/regional/national/international regulations..

RUO – Research Use Only

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