G4507

Giemsa stain

technical grade, used as a blood stain

• Synonym(s): Azure mixture sicc. Giemsa stain
• Empirical Formula (Hill Notation): C₁₄H₁₄ClN₃S
• CAS Number: 51811-82-6
• Molecular Weight: 291.80
• MDL number: MFCD00081642
• PubChem Substance ID: 329799928
• NACRES: NA.47

Properties

• grade: technical grade
• Quality Level: 100
• form: powder
• mp: 300 °C (lit.)
• solubility: ethanol: 1 mg/mL
• λmax: 645-655 nm
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Cl-].CN(C)c1ccc2N=C3C=CC(=[NH2+])C=C3Sc2c1
• InChI: 1S/C14H13N3S.ClH/c1-17(2)10-4-6-12-14(8-10)18-13-7-9(15)3-5-11(13)16-12;/h3-8,15H,1-2H3;1H
• InChI key: NALREUIWICQLPS-UHFFFAOYSA-N

Description

General description

Giemsa stain is a versatile differential stain that is widely used in hematology for blood and bone marrow specimens, clinical cytology specimens, bacteriology, histological biopsies, and tumor samples. Giemsa’s staining solution is composed of methylene blue, azure, and eosin. It is a major histological stain due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. The stain is frequently used in combination with other dye solutions: May-Grünwald’s solution for Pappenheim (MGG) and Wright-Giemsa.

Application

Giemsa stain has been used for the staining of cells and blood films.

Packaging

1, 5, 10, 25, 100 g

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves