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VAQORAIndicators, Chelating Agents & Test PapersAvailable on request
Sudan red B
Synonyms: Solvent Red 25 · C.I. Solvent Red 25 · Ceres Red B · 1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-2-naphthol
CAS No.3176-79-2
FormulaC24H20N4O
Mol. weight380.40
Catalogue No.VQ-019802
PurityOn COA
HSN—
Sudan red B (CAS 3176-79-2) – indicator. C24H20N4O, MW 380.4. Supplied by Vaqora Chemicals with COA, exported worldwide. High-purity grade with batch COA.
Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About Sudan red B
Sudan red B is an indicator carrying the CAS registry number 3176-79-2. Its molecular formula is C24H20N4O and its molecular weight is 380.4 g/mol. Systematically, it is named 1-[[3-methyl-4-[(3-methylphenyl)diazenyl]phenyl]diazenyl]naphthalen-2-ol. It is also known as Solvent Red 25 or C.I. Solvent Red 25.
Keep the container tightly sealed and store it in a cool, dry area. Handle it with standard laboratory precautions and appropriate personal protective equipment.
It is commonly used for titration end-point detection, pH determination, analytical testing and indicator for titrations. It is used across academic and industrial research and textiles and dyeing.
Standard pack sizes are 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.
Typical applications
- Titration end-point detection
- pH determination
- Analytical testing
- Indicator for titrations
Industries
Specifications & identifiers
| Product name | Sudan red B |
|---|---|
| Catalogue No. | VQ-019802 |
| CAS Number | 3176-79-2 |
| IUPAC name | 1-[[3-methyl-4-[(3-methylphenyl)diazenyl]phenyl]diazenyl]naphthalen-2-ol |
| Molecular formula | C24H20N4O |
| Molecular weight | 380.4 g/mol |
| Exact mass | 380.1637 |
| InChIKey | NHXXLZBKTKNTEF-UHFFFAOYSA-N |
| SMILES | CC1=CC(=CC=C1)N=NC2=C(C=C(C=C2)N=NC3=C(C=CC4=CC=CC=C43)O)C |
| PubChem CID | 99631 |
| Physical form | Other |
|---|---|
| LogP (XLogP3) | 7.1 |
| H-bond donors / acceptors | 1 / 5 |
| TPSA | 69.7 Ų |
| Synonyms | Solvent Red 25, C.I. Solvent Red 25, Ceres Red B, 1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-2-naphthol, 2-Naphthalenol, 1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-, 1-((3-Methyl-4-((3-methylphenyl)azo)phenyl)azo)-2-naphthol, 2-Naphthalenol, 1-((3-methyl-4-((3-methylphenyl)azo)phenyl)azo)-, 1-((3-Methyl-4-(m-tolyldiazenyl)phenyl)diazenyl)naphthalen-2-ol, 1-({3-methyl-4-[(3-methylphenyl)diazenyl]phenyl}diazenyl)naphthalen-2-ol, Fat Deep Red |
Documents
Frequently asked questions
What is the CAS number of Sudan red B?
The CAS Registry Number of Sudan red B is 3176-79-2. It is also known as Solvent Red 25, C.I. Solvent Red 25, Ceres Red B.
What is the molecular formula and molecular weight of Sudan red B?
Sudan red B has the molecular formula C24H20N4O and a molecular weight of 380.4 g/mol. Its IUPAC name is 1-[[3-methyl-4-[(3-methylphenyl)diazenyl]phenyl]diazenyl]naphthalen-2-ol.
Which grade and pack sizes of Sudan red B can I order?
We supply Sudan red B, in 5 g packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with Sudan red B?
Yes. Every lot of Sudan red B is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.
Can Sudan red B be shipped internationally?
Yes. We export Sudan red B worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.
Enquire about Sudan red B
We reply within one business day with price, pack options, lead time and documentation.
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