Fast black k salt

Name: Fast black k salt
Brand: Vaqora Chemicals
SKU: VQ-000573

About Fast black k salt

Fast black k salt (CAS 64071-86-9) is a biological stain offered by Vaqora Chemicals. Formula C14H14Cl3N5O4Zn, molecular weight 488.0 g/mol. Systematically, it is named dichlorozinc. [2,5-dimethoxy-4-[(4-nitrophenyl)diazenyl]phenyl]iminoazanium. Chloride. Alternative names: Azoic Diazo No. 38 and Fast Black K salt hemi zinc chloride.

It is supplied as a solid. Literature values give a melting point of 150 °C (dec.). Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span histology and cytology staining, microscopy, clinical laboratories and dyes and pigments manufacture. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Available in 1 g and 5 g packs, Fast black k salt is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Dyes & pigments manufacture

Industries

Specifications & identifiers

Chemical identifiers
Product name	Fast black k salt
Catalogue No.	VQ-000573
CAS Number	64071-86-9
IUPAC name	dichlorozinc;[2,5-dimethoxy-4-[(4-nitrophenyl)diazenyl]phenyl]iminoazanium;chloride
Molecular formula	C₁₄H₁₄Cl₃N₅O₄Zn
Molecular weight	488 g/mol
Exact mass	484.9403
HSN code	29420090
InChIKey	KTSPHVBBBOGQDW-UHFFFAOYSA-L
SMILES	COC1=CC(=C(C=C1N=[NH2+])OC)N=NC2=CC=C(C=C2)[N+](=O)[O-].[Cl-].Cl[Zn]Cl
PubChem CID	5748680

Physical properties
Physical form	Solid
Appearance	Solid
Melting point	150 °C (dec.)
H-bond donors / acceptors	1 / 8
TPSA	127 Å²
Synonyms	2,5-Dimethoxy-4-(4-nitrophenylazo)benzenediazonium chloride zinc double salt, 4-Amino-2,5-dimethoxy-4'-nitroazobenzene diazotated zinc double salt, Azoic Diazo No. 38, 2,5-Dimethoxy-4-((4-nitrophenyl)azo)benzenediazonium tetrachlorozincate (2:1), 2,5-dimethoxy-4-[(4-nitrophenyl)azo]benzenediazonium tetrachlorozincate (2:1), 2,5-Dimethoxy-4-[(4-nitrophenyl)azo]benzenediazonium chloride tetrachlorozincate (2:1), Fast Black K salt hemi zinc chloride

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements: P264 + P265, P280, P305 + P351 + P338, P337 + P317

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

Frequently asked questions

What is the CAS number of Fast black k salt?

The CAS Registry Number of Fast black k salt is 64071-86-9. It is also known as 2,5-Dimethoxy-4-(4-nitrophenylazo)benzenediazonium chloride zinc double salt, 4-Amino-2,5-dimethoxy-4'-nitroazobenzene diazotated zinc double salt, Azoic Diazo No. 38.

What is the molecular formula and molecular weight of Fast black k salt?

Fast black k salt has the molecular formula C14H14Cl3N5O4Zn and a molecular weight of 488 g/mol.

Which grade and pack sizes of Fast black k salt can I order?

We supply Fast black k salt, in 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Fast black k salt?

Yes. Every lot of Fast black k salt 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 Fast black k salt be shipped internationally?

Yes. Fast black k salt 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.