Direct Black 19
CAS6428-31-5
Direct Black 19 (CAS 6428-31-5, C34H27N13Na2O7S2) is supplied by ChemSigma for research and manufacturing, with specification, analytical methods and batch documentation available on request.
- CAS No.
- 6428-31-5
- Formula
- C34H27N13Na2O7S2
- Mol. weight
- 839.77 g/mol
Chemical Specifications
Identifiers
| CAS number | 6428-31-5 |
|---|---|
| Product name | Direct Black 19 |
| Chinese name | 直接黑19 |
| Synonyms | disodium 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate |
| Chinese synonyms | 直接黑19; 直接黑 G; 直接耐晒墨 L-3BG; 4-氨基-3,6-双[[4-[(2,4-二氨基苯基)偶氮]苯基]偶氮]-5-羟基萘-2,7-二磺酸二钠盐 |
| Molecular formula | C34H27N13Na2O7S2 |
| Molecular weight | 839.77 g/mol |
| EC number | 229-208-1 |
Physical and chemical properties
| Refractive index | 1.817 |
|---|
Packaging, Storage & Transport
| Available pack sizes | 5kg, 1kg, 500g, 100g, 50g, 10g |
|---|
Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.
Frequently Asked Questions
What is the CAS number of Direct Black 19?
The CAS Registry Number of Direct Black 19 is 6428-31-5. Direct Black 19 is also known as disodium 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate.
What is the molecular formula and molecular weight of Direct Black 19?
The molecular formula of Direct Black 19 is C34H27N13Na2O7S2, and its molecular weight is 839.77 g/mol.
How can I request a quotation for Direct Black 19?
Send an inquiry for Direct Black 19 (CAS 6428-31-5) with the required quantity, target specification, destination country and any documentation requirements. ChemSigma will confirm availability, packaging, lead time and price.
Request a Quote for Direct Black 19
Tell us the required quantity, target specification, destination country and any documentation requirements. We will confirm availability, packaging, lead time and price.