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Indicators, Chelating Agents & Test Papers

Eriochrome black T

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Order Eriochrome black T (CAS 1787-61-7) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Quotes within one business day.

Pack sizes
Eriochrome black T chemical structure
CAS number1787-61-7
FormulaC20H12N3NaO7S
Molar mass461.4 g/mol
Physical formPowder
HS code32049000
InChIKeyAMMWFYKTZVIRFN-UHFFFAOYSA-M
IUPAC namesodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate

About Eriochrome black T

Eriochrome black T sits in our indicators, Chelating Agents & Test Papers section and ships worldwide from stock or short lead time. Identity at a glance: CAS 1787-61-7, formula C20H12N3NaO7S and molar mass 461.4 g/mol. Expect black powder.

Typical applications

  • Titration end-point detection
  • pH determination
  • Analytical testing
  • Coordination chemistry

Storage and safety notes

Handle with the usual laboratory precautions and consult the SDS supplied with each lot.

Order it in 25 g, 100 g, 500 g, 1 kg and 5 kg packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Titration end-point detection
  • pH determination
  • Analytical testing
  • Coordination chemistry

Applications

Research Labs and Universities

Specifications and identifiers

Specifications of Eriochrome black T
Product nameEriochrome black T
Catalogue numberZX-000354
CAS number1787-61-7
IUPAC namesodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate
Molecular formulaC20H12N3NaO7S
Molar mass461.4 g/mol
Exact mass461.0294
Physical formPowder
AppearanceBlack powder
H-bond donors / acceptors2 / 9
Topological polar surface area177 Ų
HS code32049000
InChIKeyAMMWFYKTZVIRFN-UHFFFAOYSA-M
SMILESC1=CC=C2C(=C1)C=CC(=C2O)N=NC3=C4C=CC(=CC4=C(C=C3O)S(=O)(=O)[O-])[N+](=O)[O-].[Na+]
PubChem CID135465089
SynonymsSolochrome Black T, ET-00, C.I. Mordant Black 11, monosodium salt, Mordant Black 11, 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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Eriochrome black T
25 gQuoted on request
100 gQuoted on request
500 gQuoted on request
1 kgQuoted on request
5 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Eriochrome black T

Which CAS number identifies Eriochrome black T?
Eriochrome black T is registered under CAS 1787-61-7. You may also see it listed as Solochrome Black T, ET-00, C.I. Mordant Black 11, monosodium salt. Our catalogue number for this item is ZX-000354.
What are the formula and molar mass of Eriochrome black T?
For Eriochrome black T, its formula is C20H12N3NaO7S and its molar mass is 461.4 g/mol. The systematic (IUPAC) name is sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonate. InChIKey AMMWFYKTZVIRFN-UHFFFAOYSA-M lets you match it in any structure database.
What grade and pack sizes are available for Eriochrome black T?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 25 g, 100 g, 500 g, 1 kg, 5 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Eriochrome black T?
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 Eriochrome black T to my country?
Yes. Eriochrome black T ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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