Solochrome dark blue

Name: Solochrome dark blue
Brand: Vaqora Chemicals
SKU: VQ-046671

About Solochrome dark blue

Vaqora Chemicals supplies Solochrome dark blue in AR grade, an indicator registered under CAS number 2538-85-4. With the molecular formula C20H13N2NaO5S, it has a molar mass of 416.4 g/mol. The IUPAC name is sodium 3-hydroxy-4-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate. Common synonyms include Mordant Black 17 and Eriochrome Blue Black R.

Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for titration end-point detection, pH determination and analytical testing. It is used across academic and industrial research.

Vaqora Chemicals supplies Solochrome dark blue in 25 g, 100 g and 500 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Titration end-point detection
pH determination
Analytical testing

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Solochrome dark blue
Catalogue No.	VQ-046671
CAS Number	2538-85-4
IUPAC name	sodium 3-hydroxy-4-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate
Molecular formula	C₂₀H₁₃N₂NaO₅S
Molecular weight	416.4 g/mol
Exact mass	416.0443
Grade	AR
HSN code	29270090
InChIKey	ZQWICJYATMSSSD-UHFFFAOYSA-M
SMILES	C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C4=CC=CC=C43)S(=O)(=O)[O-])O)O.[Na+]
PubChem CID	135465074

Physical properties
Physical form	Other
H-bond donors / acceptors	2 / 7
TPSA	131 Å²
Synonyms	1-Naphthalenesulfonic acid, 3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt, 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt, Mordant Black 17, Eriochrome Blue Black R, Magracrom Blue, Hispacrom Blue B, Sunchromine Blue Black R, Chrome Fast Cyanine GR, Chromazine Blue Black R, Chrome Fast Cyanine BSS, Pontachrome Blue Black R, Java Chrome Blue Black RN

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

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 2538-85-4

Solochrome dark blue

CAS: 2538-85-4
Formula: C₂₀H₁₃N₂NaO₅S
MW: 416.4 g/mol

VQ-000409

Frequently asked questions

What is the CAS number of Solochrome dark blue?

The CAS Registry Number of Solochrome dark blue is 2538-85-4. It is also known as 1-Naphthalenesulfonic acid, 3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt, 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt, Mordant Black 17.

What is the molecular formula and molecular weight of Solochrome dark blue?

Solochrome dark blue has the molecular formula C20H13N2NaO5S and a molecular weight of 416.4 g/mol. Its IUPAC name is sodium 3-hydroxy-4-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate.

Which grade and pack sizes of Solochrome dark blue can I order?

We supply Solochrome dark blue in AR grade, in 25 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Solochrome dark blue?

Yes. Every lot of Solochrome dark blue 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 Solochrome dark blue be shipped internationally?

Yes. Solochrome dark blue is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.