Sodium chromotropate
Basic information
- CAS
129-96-4- Standard SMILES
O=S(=O)([O-])c1cc(O)c2c(O)cc(S(=O)(=O)[O-])cc2c1.[Na+].[Na+]- InChIKey
AFGPCIMUGMJQPD-UHFFFAOYSA-L- Molecular formula
- C10H6Na2O8S2
- Average molar mass
- 364.3 g/mol
- Monoisotopic mass
- 363.92994806
Names & identifiers
- Preferred name
- Sodium chromotropate
- IUPAC
- disodium;4,5-dihydroxynaphthalene-2,7-disulfonate
- English name
- Chromotropic acid disodium salt
- Molecular formula
- C10H9NaO8S2
- Molecular weight
- 344.28
Names & synonyms
Chromotropic acid disodium saltSodium chromotropate2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium saltDisodium chromotropateDisodium 4,5-dihydroxynaphthalene-2,7-disulphonateNSC 4883EINECS 204-972-9DTXSID6059609Sodium 1,8-dioxynaphthalene-3,6-disulfonateDisodium-1,8-dihydroxynaphthalene-3,6-disulfonateDisodium 1,8-dihydroxylnaphthalene-3,6-disulfonateDisodium naphthalene 1,8-dihydroxy-3,6-disulfonate
Show more names
Nsc4883chromogen cMordantbrownChromatropic AcidDisodium chromotropicateChromotropicaciddisodiumsalDisidium4,4'-Bis(2-sulfonatostyryl)biphenylDisodium4,5-dihydroxy-naphthalenedisulfonate
EINECS 223-430-22,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, sodium salt (1:2)RefChem:887415DTXCID3033933Sodium 1,8dioxynaphthalene3,6disulfonateDisodium1,8dihydroxynaphthalene3,6disulfonateDisodium 1,8dihydroxylnaphthalene3,6disulfonateDisodium 4,5dihydroxynaphthalene2,7disulphonate
Database identifiers
- CAS
129-96-4- PubChem CID
- 67220
- DTXSID
DTXSID6059609- ChEMBL
CHEMBL425511- EC Number
- 204-972-9
Properties
Computed structural properties
- Topological polar surface area
- 172 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 8
- Rotatable bonds
- 0
- Heavy atoms
- 22
- Formal charge
- 0
- Complexity
- 480
Experimental & physicochemical properties
Chemical ClassesOther Classes -> Naphthalenes
Physical DescriptionWhite to off-white needle-like crystals; [Mallinckrodt Baker MSDS]
Physicochemical properties
- Melting point
- 300 °C · >300 °C(lit.)
- form
- Solid:particulate/powder
- color
- off-white
- EPA Substance Registry System
- 2 · 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium salt (129-96-4)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 335 · H335-H319-H315
- Precautionary statements
- 264 · P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 26 · 26-36
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 12.5% (2 of 16) of reports.
Danger
H315 (87.5%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 16 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium salt
REACH registered substance: Disodium 4,5-dihydroxynaphthalene-2,7-disulphonate (EC: 204-972-9)
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium salt: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryMay cause irritation; [Mallinckrodt Baker MSDS] See Chromotropic acid.
Hazard Classes and CategoriesSkin Irrit. 2 (87.5%)
Safety data
- wgk
- 3
- tsca
- TSCA listed
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36
Chemistry & industry
Uses & manufacturing
General Manufacturing Information2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, sodium salt (1:2): ACTIVE
Applications
UsesChromotropic acid disodium is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
Upstream & downstream products
Downstream products
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Compound notes
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