Cotton blue
Order Cotton blue (CAS 28983-56-4) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Exported from India with full paperwork.
About Cotton blue
Cotton blue sits in our stains, Fluorescent Dyes & Histology Reagents section and ships worldwide from stock or short lead time. Key data (Microscopy): CAS 28983-56-4, formula C37H28N3Na2O9S3+ and molar mass 800.8 g/mol. Typical appearance is dark red brown powder.
Typical applications
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Storage and safety notes
Classified under GHS with signal word Warning and hazard statements H302, H315, H319 and H335. Read the SDS before first use.
Available as 25 g, 100 g, 1 kg and 4 x 25 kg. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Applications
Specifications and identifiers
| Product name | Cotton blue |
|---|---|
| Catalogue number | ZX-000542 |
| CAS number | 28983-56-4 |
| IUPAC name | disodium;4-[4-[[4-(4-sulfoanilino)phenyl]-[4-(4-sulfonatophenyl)azaniumylidenecyclohexa-2,5-dien-1-ylidene]methyl]anilino]benzenesulfonate |
| Molecular formula | C37H28N3Na2O9S3+ |
| Molar mass | 800.8 g/mol |
| Exact mass | 800.0783 |
| Grade | Microscopy |
| Physical form | Powder |
| Appearance | Dark red brown powder |
| H-bond donors / acceptors | 4 / 11 |
| Topological polar surface area | 232 Ų |
| HS code | 32041251 |
| InChIKey | MCPLVIGCWWTHFH-UHFFFAOYSA-M |
| SMILES | C1=CC(=[NH+]C2=CC=C(C=C2)S(=O)(=O)[O-])C=CC1=C(C3=CC=C(C=C3)NC4=CC=C(C=C4)S(=O)(=O)O)C5=CC=C(C=C5)NC6=CC=C(C=C6)S(=O)(=O)[O-].[Na+].[Na+] |
| PubChem CID | 76956083 |
| Synonyms | Methyl Blue, Helvetia Blue, Acid Blue 93, C.I. Acid Blue 93, C.I. Acid Blue 93, disodium salt, Ink Blue, Soluble Blue, Helvetia Blue I, Ink Blue Special, Water Blue B, Soluble Blue 8B, Water Blue IN |
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
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements P261, P305 + P351 + P338
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 25 g | Quoted on request | |
| 100 g | Quoted on request | |
| 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 Cotton blue
Which CAS number identifies Cotton blue?
What are the formula and molar mass of Cotton blue?
What grade and pack sizes are available for Cotton blue?
Which documents come with Cotton blue?
Can Zemixal ship Cotton blue to my country?
Other grades with CAS 28983-56-4
Related products
More in Stains, Fluorescent Dyes & Histology Reagents
Have a list of compounds to price?
Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.