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Stains, Fluorescent Dyes & Histology Reagents

Giemsa stain

MicroscopyAvailable on request

Buy Giemsa stain (CAS 51811-82-6) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-000597.

Pack sizes
Giemsa stain chemical structure
CAS number51811-82-6
FormulaC14H14ClN3S
Molar mass291.8 g/mol
Physical formPowder
HS code32049000
InChIKeyNALREUIWICQLPS-UHFFFAOYSA-N
IUPAC name(7-aminophenothiazin-3-ylidene)-dimethylazanium chloride

About Giemsa stain

Giemsa stain sits in our stains, Fluorescent Dyes & Histology Reagents section and ships worldwide from stock or short lead time. For your records (Microscopy), the material is defined by CAS 51811-82-6, formula C14H14ClN3S and molar mass 291.8 g/mol. Expect dark green powder.

Typical applications

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Safe handling

It carries the GHS signal word Warning (H319), so wear gloves and eye protection and work with good ventilation.

Available as 25 g, 100 g, 500 g, 1 kg and 4 x 25 kg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Applications

Specifications and identifiers

Specifications of Giemsa stain
Product nameGiemsa stain
Catalogue numberZX-000597
CAS number51811-82-6
IUPAC name(7-aminophenothiazin-3-ylidene)-dimethylazanium chloride
Molecular formulaC14H14ClN3S
Molar mass291.8 g/mol
Exact mass291.0597
GradeMicroscopy
Physical formPowder
AppearanceDark green powder
H-bond donors / acceptors1 / 4
Topological polar surface area66.7 Ų
HS code32049000
InChIKeyNALREUIWICQLPS-UHFFFAOYSA-N
SMILESC[N+](=C1C=CC2=NC3=C(C=C(C=C3)N)SC2=C1)C.[Cl-]
PubChem CID13735
SynonymsAzure mixture sicc. Giemsa stain, Giemsa's stain, Stain, Giemsa, Dimethylthionine, Azure A chloride, 3-Amino-7-(dimethylamino)phenothiazin-5-ium chloride, Azur A, N,N-Dimethylthionine, Phenothiazin-5-ium, 3-amino-7-(dimethylamino)-, chloride, 3-Amino-7-dimethylaminophenothiazin-5-ium chloride, asym-Dimethyl-3,7-diaminophenazathionium chloride, 3-Amino-7-dimethylaminophenazathionium chloride

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H319Causes serious eye irritation

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

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Giemsa stain
25 gQuoted on request
100 gQuoted on request
500 gQuoted on request
1 kgQuoted on request
4 x 25 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 Giemsa stain

Which CAS number identifies Giemsa stain?
Giemsa stain is registered under CAS 51811-82-6. You may also see it listed as Azure mixture sicc. Giemsa stain, Giemsa's stain, Stain, Giemsa. Our catalogue number for this item is ZX-000597.
What are the formula and molar mass of Giemsa stain?
For Giemsa stain, its formula is C14H14ClN3S and its molar mass is 291.8 g/mol. The systematic (IUPAC) name is (7-aminophenothiazin-3-ylidene)-dimethylazanium chloride. InChIKey NALREUIWICQLPS-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Giemsa stain?
This listing is Microscopy grade. Standard packs are 25 g, 100 g, 500 g, 1 kg, 4 x 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Giemsa stain?
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 Giemsa stain to my country?
Yes. Because Giemsa stain is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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