Eriochrome black T, GR indicator

Name: Eriochrome black T, GR indicator
Brand: Vaqora Chemicals
SKU: VQ-000562

About Eriochrome black T, GR indicator

Listed under CAS 1787-61-7, Eriochrome black T is a biological stain available from Vaqora Chemicals in AR grade. Formula C20H12N3NaO7S, molecular weight 461.4 g/mol. Systematically, it is named sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate. It is also known as Mordant Black 11 or C.I. Mordant Black 11, monosodium salt.

In its supplied form it is a black powder. Store sealed in a dry, well-ventilated location away from incompatible materials. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include histology and cytology staining, microscopy and clinical laboratories. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

We offer Eriochrome black T in 25 g, 100 g, 500 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Eriochrome black T, GR indicator
Catalogue No.	VQ-000562
CAS Number	1787-61-7
IUPAC name	sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate
Molecular formula	C₂₀H₁₂N₃NaO₇S
Molecular weight	461.4 g/mol
Exact mass	461.0294
Grade	AR
HSN code	32049000
InChIKey	AMMWFYKTZVIRFN-UHFFFAOYSA-M
SMILES	C1=CC=C2C(=C1)C=CC(=C2O)N=NC3=C4C=CC(=CC4=C(C=C3O)S(=O)(=O)[O-])[N+](=O)[O-].[Na+]
PubChem CID	135465089

Physical properties
Physical form	Powder
Appearance	Black powder
H-bond donors / acceptors	2 / 9
TPSA	177 Å²
Synonyms	Mordant Black 11, C.I. Mordant Black 11, monosodium salt, Solochrome Black T, Fast Chrome Black T, Hispacrom Black T, Magracrom Black A, Diacromo Black PA, Acid Chrome Black A, Solochrome Black, Potting Black C, Chrome Black PB, Chrome Black TK

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1787-61-7

Eriochrome black T

CAS: 1787-61-7
Formula: C₂₀H₁₂N₃NaO₇S
MW: 461.4 g/mol

VQ-000354

Frequently asked questions

What is the CAS number of Eriochrome black T, GR indicator?

The CAS Registry Number of Eriochrome black T, GR indicator is 1787-61-7. It is also known as Mordant Black 11, C.I. Mordant Black 11, monosodium salt, Solochrome Black T.

What is the molecular formula and molecular weight of Eriochrome black T, GR indicator?

Eriochrome black T, GR indicator has the molecular formula C20H12N3NaO7S and a molecular weight of 461.4 g/mol. Its IUPAC name is sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate.

Which grade and pack sizes of Eriochrome black T, GR indicator can I order?

We supply Eriochrome black T, GR indicator in AR grade, in 25 g, 100 g, 500 g, 1 kg, 5 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Eriochrome black T, GR indicator?

Yes. Every lot of Eriochrome black T, GR indicator 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 Eriochrome black T, GR indicator be shipped internationally?

Yes. We export Eriochrome black T, GR indicator worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.