Basic information
- CAS
4196-99-0- Standard SMILES
O=S(=O)(O)c1ccc(N=Nc2ccc(N=Nc3c(O)ccc4ccccc34)c(S(=O)(=O)O)c2)cc1- InChIKey
BYABGQJPCPYPSZ-UHFFFAOYSA-N- Molecular formula
- C22H16N4O7S2
- Average molar mass
- 512.5 g/mol
- Monoisotopic mass
- 512.04604121
Overview
Biebrich scarlet (acid form) is an arenesulfonic acid that is m-[(4-sulfophenyl)diazenyl]benzene-1-sulfonic acid carrying a (2-hydroxynaphthalen-1-yl)diazenyl substituent at position 2. The disodium salt is the biological stain 'Biebrich scarlet'. It has a role as a histological dye. It is a member of azobenzenes, a member of naphthols, an arenesulfonic acid and a bis(azo) compound. It is a conjugate acid of a Biebrich scarlet(2-).
Names & identifiers
- Preferred name
- 2-[(2-Hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfophenyl)diazenyl]benzene-1-sulfonic acid
- IUPAC
- 2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfophenyl)diazenyl]benzenesulfonic acid
- English name
- Acid red 66
- Molecular formula
- C22H17N4NaO7S2
- Molecular weight
- 536.51
Names & synonyms
Biebrich scarlet (acid form)Cloth Red GAmacid Red 3BRed HMBiebrich Scarlet WSBiebrich Scarlet W 52-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfophenyl)diazenyl]benzene-1-sulfonic acidacid red 66 (free acid form)CHEMBL1995265SCHEMBL11877643SCHEMBL11877650SCHEMBL26666880
Show more names
CI 26905SCARLET BPONCEAU BNSC 79710PONCEAU BSBONCEAU BSScarlet ECCI NO 26905
CHEBI:87187DTXSID40863338VJULFVPZZZJPDJ-SRURNFRUSA-NNSC79710NSC-79710Q27159431
Database identifiers
- CAS
4196-99-0- PubChem CID
- 20171
- DTXSID
DTXSID40863338- ChEMBL
CHEMBL1995265
Properties
Computed structural properties
- XLogP
- 3.9
- Topological polar surface area
- 195 Ų
- Hydrogen bond donors
- 3
- Hydrogen bond acceptors
- 11
- Rotatable bonds
- 6
- Heavy atoms
- 35
- Formal charge
- 0
- Complexity
- 984
Physicochemical properties
- Melting point
- 181 · 181-188 °C
- Flash point
- 300 ° · 300°(572°F)
- storage temp.
- room temp
- solubility
- 1 mg/mL · ethanol: 1 mg/mL
- form
- Powder
- Colour Index
- 26905 · 26905
- color
- Dark brown powder
- Water Solubility
- Appreciable (> 10%)
- λmax
- 505 nm · 505 nm
- BRN
- 3883900 · 3883900
- Stability
- Stable. Incompatible with strong oxidizing agents.
- Major Application
- diagnostic assay manufacturinghematologyhistology
- InChIKey
- VVAVKBBTPWYADW-RVTJCSDESA-L
- SMILES
- [Na+].[Na+].Oc1ccc2ccccc2c1\N=N\c3ccc(cc3S([O-])(=O)=O)\N=N\c4ccc(cc4)S([O-])(=O)=O
- CAS DataBase Reference
- 4196 · 4196-99-0
- EPA Substance Registry System
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
- PPE
- Eyeshields, Gloves, type N95 (US)
- wgk
- 3
- tsca
- TSCA listed
- hs_code
- 32041200
- risk_code
- 36/37/38-20/21/22
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi,Xn
- safety_code
- 37/39-26-36
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319-H335
- Precautionary statements
- P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
Chemistry & industry
Applications
UsesPonceau BS has been used in Masson′s trichrome stain for the staining of collagen. It has also been used for eosinophil staining.
Preparation methods
Preparation3,4′-Disulfo-4-aininoazobenzenediazo, and Naphthalen-2-ol coupling.
Upstream & downstream products
Upstream raw materials
Suppliers81 total
国药集团化学试剂有限公司86-21-63210123 · [email protected]
北京华美互利生物化工010-56205725 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
湖南韵邦生物科技股份有限公司0731-88532326 13319508186 · [email protected]
湖北威德利化学试剂有限公司186-02735115 18062128043 · [email protected]
上海康朗生物科技有限公司021-61998208 18217752821 · [email protected]
上海麦克林生化科技股份有限公司021-50706066 15221275939 · [email protected]
上海哲研生物科技有限公司021-18017610038 18017610038 · [email protected]
上海如吉生物科技发展有限公司+86-21-65211385-8001 36031160 · [email protected]
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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