SPADNS, GR (a complexometric indicator for zirconium, thorium & fluoride)
- CAS
- 23647-14-5
- Formula
- C16H9N2Na3O11S3
- MW
- 570.4 g/mol
ZX-000709
Stains, Fluorescent Dyes & Histology Reagents
Sudan black B
MicroscopyAvailable on request
Buy Sudan black B (CAS 4197-25-5) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 g. Catalogue no. ZX-000710.
CAS number4197-25-5
FormulaC29H24N6
Molar mass456.5 g/mol
Physical formPowder
HS code32049000
InChIKeyYCUVUDODLRLVIC-UHFFFAOYSA-N
IUPAC name(2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene
About Sudan black B
Sudan black B is part of the Zemixal stains, Fluorescent Dyes & Histology Reagents range. Key data (Microscopy): CAS 4197-25-5, formula C29H24N6 and molar mass 456.5 g/mol. It is described as dark brown to very dark brown and black powder.
Where it is used
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Storage and safety notes
Reported physical data: melting point 120-124 °C. Classified under GHS with signal word Warning and hazard statements H341. Read the SDS before first use.
Available as 10 g, 25 g, 100 g, 1 kg and 5 x 1 kg. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Applications
Specifications and identifiers
| Product name | Sudan black B |
|---|---|
| Catalogue number | ZX-000710 |
| CAS number | 4197-25-5 |
| IUPAC name | (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene |
| Molecular formula | C29H24N6 |
| Molar mass | 456.5 g/mol |
| Exact mass | 456.2062 |
| Grade | Microscopy |
| Physical form | Powder |
| Appearance | Dark brown to very dark brown and black powder |
| Melting point | 120-124 °C |
| XLogP3 | 8.4 |
| H-bond donors / acceptors | 2 / 6 |
| Topological polar surface area | 73.5 Ų |
| HS code | 32049000 |
| InChIKey | YCUVUDODLRLVIC-UHFFFAOYSA-N |
| SMILES | CC1(NC2=C3C(=C(C=C2)N=NC4=CC=C(C5=CC=CC=C54)N=NC6=CC=CC=C6)C=CC=C3N1)C |
| PubChem CID | 61336 |
| Synonyms | Ceres black BN, Fat Black HB, Solvent Black 3, C.I. Solvent Black 3, Fast Black HB, Typogen Black, Lacquer Black S, Nubian Black BT, Hexatype Black B, Lacquer Black VB, Fast Black HBN, Sudan Deep Black BB |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H341Suspected of causing genetic defects
Precautionary statements P203, P280, P318, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 10 g | Quoted on request | |
| 25 g | Quoted on request | |
| 100 g | Quoted on request | |
| 1 kg | Quoted on request | |
| 5 x 1 kg | Quoted on request | |
| 4 x 25 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Sudan black B
Which CAS number identifies Sudan black B?
Sudan black B is registered under CAS 4197-25-5. You may also see it listed as Ceres black BN, Fat Black HB, Solvent Black 3. Our catalogue number for this item is ZX-000710.
What are the formula and molar mass of Sudan black B?
For Sudan black B, its formula is C29H24N6 and its molar mass is 456.5 g/mol. The systematic (IUPAC) name is (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene. InChIKey YCUVUDODLRLVIC-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Sudan black B?
This listing is Microscopy grade. Standard packs are 10 g, 25 g, 100 g, 1 kg, 5 x 1 kg, 4 x 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Sudan black B?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Sudan black B to my country?
Yes. Because Sudan black B is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
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