4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid
Basic information
- CAS
32266-60-7- Standard SMILES
O=S(=O)(O)c1cc(O)c2c(N=Cc3ccccc3O)cc(S(=O)(=O)O)cc2c1- InChIKey
DUCCKQSNXPFEGT-UHFFFAOYSA-N- Molecular formula
- C17H13NO8S2
- Average molar mass
- 423.4 g/mol
- Monoisotopic mass
- 423.00825872
Overview
See also: Azomethine H (annotation moved to); Azomethine-H sodium (annotation moved to) ... View More ...
Names & identifiers
- Preferred name
- 4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid
- IUPAC
- 4-hydroxy-5-[(2-hydroxyphenyl)methylideneamino]naphthalene-2,7-disulfonic acid
- English name
- AZOMETHINE H
- Molecular formula
- C17H13NO8S2
- Molecular weight
- 423.42
Names & synonyms
32266-60-74-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acidAzomethine HAzomethine-Hazomethine-h monosodium4-Hydroxy-5-(salicylidene-amino)-2,7-naphthalenedisulfonic acidNCIStruc1_001287NCIStruc2_0017784-hydroxy-5-[(2-hydroxyphenyl)methylideneamino]naphthalene-2,7-disulfonic acidAzomethine-H (>90%)5941-07-11-(salicylideneamino)-8-hydroxynaphthalene-3,6-disulfonic acid
Show more names
Azomethine-H hydrateAZOMETHINE-H,REAGENT4-Hydroxy-5-[[(2-Hydroxy4-Hydroxy-5-(salicylideneamino)-2,7-naphthalene disulphonic acidAzomethine-H hydrate， reagent for boron determination， Reag. Ph. Eur.8-Hydroxy-1-(salicylideneamino)-3,6-naphthalenedisulfonicacid,disodiumsalt
4-hydroxy-5-((2-hydroxybenzylidene)amino)-2,7-naphthalenedisulfonic acidNSC88947NSC-88947C17H13NO8S2EINECS 250-975-34-hydroxy-5-{[(2-hydroxyphenyl)methylidene]amino}naphthalene-2,7-disulfonic acidSCHEMBL3424506SCHEMBL3424512
Properties
Computed structural properties
- XLogP
- 1.3
- Topological polar surface area
- 178 Ų
- Hydrogen bond donors
- 4
- Hydrogen bond acceptors
- 9
- Rotatable bonds
- 4
- Heavy atoms
- 28
- Formal charge
- 0
- Complexity
- 785
Physicochemical properties
- Melting point
- 300 °C · >300°C
- Density
- 1.66 · 1.66±0.1 g/cm3(Predicted)
- storage temp.
- 2 · Sealed in dry,2-8°C
- solubility
- DMSO (Slightly), Methanol (Slightly), Water (Slightly)
- pka
- -0.77 · -0.77±0.40(Predicted)
- form
- Crystalline
- Appearance
- Yellow to orange Solid
- Water Solubility
- Soluble in acetone, ammonium hydroxide, n-butanol and water.
- Sensitive
- Light Sensitive
- Stability
- Hygroscopic
- CAS DataBase Reference
- 32266 · 32266-60-7(CAS DataBase Reference)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 280 · P280-P302+P352-P362+P364
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Safety data
- hs_code
- 29214990
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- safety_code
- 24/25
- Hazard statements
- H315-H319-H335
- Precautionary statements
- P280-P302+P352-P362+P364
Chemistry & industry
Applications
UsesA highly sensitive reagent for testing boron
UsesAzomethine-H hydrate is used as a highly sensitive and colorimetric reagent for testing and detection of boron. It is also used to detect microgram levels of boron in glass and steel samples. Further, it is involved in the detection of boron in plant samples by masking copper, iron and aluminum ions with ethylenediaminetetraacetic acid.
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Compound notes
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