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DISPERSE BLACK 9

DISPERSE BLACK 9 Structure
DISPERSE BLACK 9 structure
CAS No.
20721-50-0
Chemical Name:
DISPERSE BLACK 9
Synonyms
Einecs 243-987-5;DISPERSE BLACK 9 ISO 9001：2015 REACH;Ethanol, 2,2-4-(4-aminophenyl)azophenyliminobis-;2,2'-((p-((p-Aminophenyl)azo)phenyl)imino)diethanol;2,2'-[[4-[(4-aminophenyl)azo]phenyl]imino]bisethanol;2,2’-[[4-[(4-aminophenyl)azo]phenyl]imino]bis-ethano;Ethanol, 2,2'-((4-(2-(4-aminophenyl)diazenyl)phenyl)imino)bis-
CBNumber:
CB4152440
Molecular Formula:
C16H20N4O2
Molecular Weight:
300.36
MDL Number:
MFCD00161159
MOL File:
20721-50-0.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 02:23:13
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DISPERSE BLACK 9 Properties

Melting point 157-160 °C(lit.)
Boiling point 569.2±50.0 °C(Predicted)
Density 1.22±0.1 g/cm3(Predicted)
storage temp. room temp
pka 14.21±0.10(Predicted)
form powder
λmax 461 nm
ε(extinction coefficient) ≥20000 at 458-464nm in H2O
Major Application diagnostic assay manufacturing
hematology
histology
Cosmetics Ingredients Functions HAIR DYEING
InChI 1S/C16H20N4O2/c17-13-1-3-14(4-2-13)18-19-15-5-7-16(8-6-15)20(9-11-21)10-12-22/h1-8,21-22H,9-12,17H2
InChIKey NZKTVPCPQIEVQT-UHFFFAOYSA-N
SMILES Nc1ccc(cc1)N=Nc2ccc(cc2)N(CCO)CCO
LogP 2.500 (est)
FDA UNII 7GKC99M24T
EPA Substance Registry System Ethanol, 2,2'-[[4-[(4-aminophenyl)azo]phenyl]imino]bis- (20721-50-0)
UNSPSC Code 12171500
NACRES NA.47

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
TSCA  TSCA listed
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

DISPERSE BLACK 9 price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Chem-Impex 41955 Disperse Black 9 ≥97%(Dyecontent) 20721-50-0 5G $265.9 2026-05-19 Buy
aablocks AA0016W3 Disperse Black 9 ≥97%(Dyecontent) 20721-50-0 5g $286 2026-05-28 Buy
American Custom Chemicals Corporation DYE0002677 DISPERSE BLACK 9 95.00% 20721-50-0 1G $172.2 2021-12-16 Buy
Product number Packaging Price Buy
41955 5G $265.9 Buy
AA0016W3 5g $286 Buy
DYE0002677 1G $172.2 Buy

DISPERSE BLACK 9 Chemical Properties, Uses, Production

Uses

diagnostic assay manufacturing
hematology
histology

DISPERSE BLACK 9 Preparation Products And Raw materials

Raw materials

Preparation Products

DISPERSE BLACK 9 Suppliers

Global Suppliers ( 16)
Supplier Tel Email Country ProdList Advantage
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Alfa Chemistry 1-516-6625404 support@alfa-chemistry.com United States 9170 60
Dideu Industries Group Limited +8617392712697 1022@dideu.com China 29091 58
Shaanxi Dideu Newmaterial Co., Ltd. 029-63373950 17392216152 1035@dideu.com China 9991 58
TargetMol 400-821-0310 15002144251 xuexiang.shao@tsbiochem.com China 29128 58
Sichuan Vicki Biotechnology Co., Ltd. 18108052721 17743264324 3003848760@qq.com China 2101 58
Supplier Advantage
Energy Chemical 61
Sigma-Aldrich 80
Alfa Chemistry 60
Dideu Industries Group Limited 58
Shaanxi Dideu Newmaterial Co., Ltd. 58
TargetMol 58
Sichuan Vicki Biotechnology Co., Ltd. 58

DISPERSE BLACK 9 Spectrum

DISPERSE BLACK 9(20721-50-0)IR

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Ethanol, 2,2-4-(4-aminophenyl)azophenyliminobis- 2,2’-[[4-[(4-aminophenyl)azo]phenyl]imino]bis-ethano 2,2'-[[4-[(4-aminophenyl)azo]phenyl]imino]bisethanol 2,2'-((p-((p-Aminophenyl)azo)phenyl)imino)diethanol Einecs 243-987-5 Ethanol, 2,2'-((4-(2-(4-aminophenyl)diazenyl)phenyl)imino)bis- DISPERSE BLACK 9 ISO 9001：2015 REACH 20721-50-0 C16H20N4O2 H2NC6H4NNC6H4NCH2CH2OH2 Organics dye