1. Primary Information
| English name: | C.I. Direct Black 38 |
| CAS No.: | 1937-37-7 |
| Molecular formula: | C34H25N9NA2O7S2 |
| Molecular weight: | 781.7 g/mol |
| SMILES: | C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)N)O.[Na+].[Na+] |
| Structural class: | |
| Other identifiers: |
2-naphthalenesulfonic acid, 6-amino-4-hydroxy-3-((4-(phenylazo)-1-naphthalenyl)azo)-, monosodium salt 4-amino-3-((4'-((2,4-diaminophenyl)azo)-4- biphenylyl)azo)-5-hydroxy-6-(phenylazo)-2,7- naphthalenedisulfonic acid, disodium salt chlorazol black E direct black 3 direct black 38 |
2. Suppliers & Pricing
| Supplier | Pack size | Purity | Price (CNY) | Storage conditions | Lead time | Notes |
| Kehua Intelligence | 5g | Dye content, ≥45%(based on Nitrogen) | 56 | RT | in stock | - |
| Kehua Intelligence | 25g | Dye content, ≥45%(based on Nitrogen) | 96 | RT | in stock | - |
| Kehua Intelligence | 100g | Dye content, ≥45%(based on Nitrogen) | 312 | RT | in stock | - |
3. Structures
3.1 2D structure
3.2 3D structure
4. International Nomenclature & Identifiers
4.1 IUPAC Name
disodium;4-amino-3-[[4-[4-[(2,4-diaminophenyl)diazenyl]phenyl]phenyl]diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate
4.2 InChI
InChI=1S/C34H27N9O7S2.2Na/c35-22-10-15-27(26(36)18-22)41-38-24-11-6-19(7-12-24)20-8-13-25(14-9-20)40-42-32-28(51(45,46)47)16-21-17-29(52(48,49)50)33(34(44)30(21)31(32)37)43-39-23-4-2-1-3-5-23;;/h1-18,44H,35-37H2,(H,45,46,47)(H,48,49,50);;/q;2*+1/p-2
4.3 InChIKey
XRPLBRIHZGVJIC-UHFFFAOYSA-L
4.4 Canonical SMILES
C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)C5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)N)O.[Na+].[Na+]
4.5 Isomeric SMILES
-
