5H-Benz(6,7)indazolo(2,3,4-fgh)naphth(2'',3'':6',7')indolo(3',2':5,6)anthra(2,1,9-mna)acridine-5,8,13,25(24H)-tetrone
Basic information
- CAS
2278-50-4- Standard SMILES
O=C1c2ccccc2C(=O)c2c1ccc1c2[nH]c2ccc3c4ccc5c6c(ccc(c(=O)c3c21)c46)c1ccc2c(=O)c3ccccc3c3nn5c1c23- InChIKey
VUSWQWZUVYOZAY-UHFFFAOYSA-N- Molecular formula
- C45H19N3O4
- Average molar mass
- 665.6 g/mol
- Monoisotopic mass
- 665.1375561
Names & identifiers
- Preferred name
- 5H-Benz(6,7)indazolo(2,3,4-fgh)naphth(2'',3'':6',7')indolo(3',2':5,6)anthra(2,1,9-mna)acridine-5,8,13,25(24H)-tetrone
- IUPAC
- 6,42,48-triazatridecacyclo[25.18.2.139,42.02,22.05,21.07,20.08,17.010,15.024,46.028,41.031,40.033,38.043,47]octatetraconta-1(45),2(22),3,5(21),7(20),8(17),10,12,14,18,24(46),25,27(47),28(41),29,31(40),33,35,37,39(48),43-henicosaene-9,16,23,32-tetrone
- English name
- Vat Black 8
- Molecular formula
- C45H19N3O4
- Molecular weight
- 665.66
Names & synonyms
5H-Benz(6,7)indazolo(2,3,4-fgh)naphth(2'',3'':6',7')indolo(3',2':5,6)anthra(2,1,9-mna)acridine-5,8,13,25(24H)-tetrone5H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-5,8,13,25(24H)-tetroneRefChem:538248Paradone Grey M2278-50-4Vat Black 8C.I. Vat Black 81H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-2,7,10,15-tetroneCaledon Grey M6,42,48-triazatridecacyclo[25.18.2.139,42.02,22.05,21.07,20.08,17.010,15.024,46.028,41.031,40.033,38.043,47]octatetraconta-1(45),2(22),3,5(21),7(20),8(17),10,12,14,18,24(46),25,27(47),28(41),29,31(40),33,35,37,39(48),43-henicosaene-9,16,23,32-tetroneBenzadone Grey MParadone Grey MG
Show more names
Grey MC.I.71000Reduced ash MNovatic Grey MDycosthren Grey M
Indanthren Grey MMikethrene Grey MOstanthren Grey MVat Gray SVat Grey SVat Grey VNihonthrene Grey MIndanthren Grey MG
Database identifiers
- CAS
2278-50-4- PubChem CID
- 75287
- DTXSID
DTXSID9062302- EC Number
- 218-906-1
Properties
Computed structural properties
- XLogP
- 8.9
- Topological polar surface area
- 101 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 5
- Rotatable bonds
- 0
- Heavy atoms
- 52
- Formal charge
- 0
- Complexity
- 1,610
Physicochemical properties
- Boiling point
- 685.55 °C · 685.55°C (rough estimate)
- Density
- 1.2394 · 1.2394 (rough estimate)
- refractive index
- 1.779 · 1.7790 (estimate)
- pka
- 13.18 · 13.18±0.20(Predicted)
- EPA Substance Registry System
- 1 H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-2,7,10,15-tetrone · 1H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-2,7,10,15-tetrone (2278-50-4)
- TSCA
- TSCA listed
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Hazard information
Regulatory InformationChemical: 5H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-5,8,13,25(24H)-tetrone
Other Safety InformationEvaluation - Chemicals not considered for in depth evaluation - Not commercially active in Australia
Safety data
- tsca
- TSCA listed
Chemistry & industry
Uses & manufacturing
General Manufacturing Information5H-Benz[6,7]indazolo[2,3,4-fgh]naphth[2'',3'':6',7']indolo[3',2':5,6]anthra[2,1,9-mna]acridine-5,8,13,25(24H)-tetrone: INACTIVE
Applications
UsesVat Gray M (Vat Black 8) is mainly used for dyeing cotton fibers and their fabrics, as well as printing on cotton cloth. It has good affinity but moderate leveling properties. It is also used for dyeing silk, viscose fiber, and cotton-vinyl blended fabrics. Dyeing methods include pad dyeing and dip dyeing. Its fine powder specifications are suitable for suspension pad dyeing. After finishing with cyanaldehyde or BHES resin, the color of the printed and dyed fabric remains basically unchanged. After finishing with trimethylolpropane melamine or DMEU resin, the color is bluer than the original sample. After finishing with 2D resin, the color becomes slightly redder.
Preparation methods
Preparation3,9-Dibromo-7H-benzo[de]anthracen-7-one, 3H-naphtho[2,3-f]indazol-3-one and 1-Aminoanthracene-9,10-dione in Potassium hydroxide under the existence of condensation, closed loop.
Upstream & downstream products
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