| Identification | Back Directory | [Name]
Direct Yellow 12 | [CAS]
2870-32-8 | [Synonyms]
CI 24895
CHRYSOPHENINE
DirectyellowG
ChrysophenineG
DirectYellowGX
Chrysophenin G
Pyrazol Yellow
Chrysophenin NS
DIRECT YELLOW 12
Benzol Yellow LG
Pyrazol Yellow C
Romexal Yellow C
Direct Yellow GK
Diazine Yellow CP
C.I.Directyellow12
Diphenyl Yellow CH
Chloraxol Yellow CG
Pamanil Yellow G-12
Kayaku Chrysophenine
Direct Chrysophenine
Nylornine Yellow C-4R
Mitsui Chrysophenine G
Shikiso Chrysophenine G
Tertrodirect Yellow CG.
abcol direct yellow 4 ra
Direct Brilliant Yellow 4R
chrysophenine (C.I. 24895)
Atul Direct Fast Yellow GCH
C.I.Direct Yellow 12(24895)
Direct yellow 12 (C.I. 24895)
Disodium 4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulfonate
disodium 4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonate
2,2’-(1,2-ethenediyl)bis[5-[(4-ethoxyphenyl)azo]-benzenesulfonicacidisodi
2,2'-(1,2-Ethenediyl)bis[5-[(4-ethoxyphenyl)azo]benzenesulfonic acid sodium] salt
2,2'-(1,2-Ethenediyl)bis[5-[(4-ethoxyphenyl)azo]benzenesulfonic acid]disodium salt
Benzenesulfonic acid, 2,2-(1,2-ethenediyl)bis5-(4-ethoxyphenyl)azo-, disodium salt | [EINECS(EC#)]
220-698-2 | [Molecular Formula]
C30H26N4Na2O8S2 | [MDL Number]
MFCD00007488 | [MOL File]
2870-32-8.mol | [Molecular Weight]
680.66 |
| Chemical Properties | Back Directory | [Appearance]
orange crystalline powder | [Melting point ]
>300°C | [storage temp. ]
Amber Vial, Refrigerator, Under inert atmosphere | [solubility ]
DMSO (Slightly), Methanol (Slightly), Water (Slightly) | [Colour Index ]
24895 | [form ]
Solid | [color ]
Orange to Dark Orange | [ε(extinction coefficient)]
≥29000 at 389-401nm in water at 0.02g/L | [λmax]
389 nm | [Stability:]
Light Sensitive | [Major Application]
diagnostic assay manufacturing
hematology
histology | [Cosmetics Ingredients Functions]
HAIR DYEING | [InChIKey]
BFMGWSCDIBELQN-BHHUATOHSA-N | [SMILES]
C(C1C=CC(/N=N/C2C=CC(OCC)=CC=2)=CC=1S(O)(=O)=O)=CC1C=CC(/N=N/C2C=CC(OCC)=CC=2)=CC=1S(O)(=O)=O.[NaH] | [EPA Substance Registry System]
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl) bis[5-[(4-ethoxyphenyl)azo]-, disodium salt(2870-32-8) |
| Hazard Information | Back Directory | [Chemical Properties]
orange crystalline powder | [Uses]
A diazo stilbene dye | [Properties and Applications]
|
TEST ITEMS
|
SPECIFICATION
|
|
APPEARANCE
|
YELLOW
|
|
LIGHTING
|
4
|
|
SOAPING
|
3-4
|
|
PERSPIRATING
|
3-4
|
|
FRICTION(DRY)
|
4-5
|
|
FRICTION(WET)
|
3
|
|
RESIDUE ON 80 MESH
|
5.0% max
|
|
WATER SOLUBILE
|
1.0% max
|
|
VOLATITE 105°C
|
1.0% max
|
|
TINTING STRENGTH
|
100-105 %
|
|
WEIGHT METAL TOTAL
|
50ppm max
|
|
|
| Company Name: |
J & K SCIENTIFIC LTD.
|
| Telephone: |
18210857532 18210857532 |
| Website: |
https://www.jkchemical.com |
| Company Name: |
Energy Chemical
|
| Telephone: |
400-0056266 |
| Website: |
www.energy-chemical.com |
| Company Name: |
Maya High Purity Chemicals
|
| Telephone: |
+86 (573) 82222445 (0)18006601000 452520369 |
| Website: |
www.chemicalbook.com/ShowSupplierProductsList15221/0_EN.htm |
| Company Name: |
Grader reagent
|
| Telephone: |
18221735425 |
| Website: |
www.shxinping.net |
|