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G4507

Sigma-Aldrich

Giemsa stain

technical grade, used as a blood stain

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

grade

technical grade

Quality Level

form

powder

color

dark greenvery dark

mp

300 °C (lit.)

solubility

ethanol: 1 mg/mL

λmax

645-655 nm

suitability

application for blood stain

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

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This Item
G5637GS500GS128
Giemsa stain technical grade, used as a blood stain

G4507

Giemsa stain

Giemsa stain certified by the Biological Stain Commission

G5637

Giemsa stain

Giemsa Stain, Modified

GS500

Giemsa Stain, Modified

Giemsa Stain, Modified

GS128

Giemsa Stain, Modified

suitability

application for blood stain

suitability

-

suitability

-

suitability

-

color

dark greenvery dark

color

dark green to very dark green

color

-

color

-

solubility

ethanol: 1 mg/mL

solubility

ethanol: 1 mg/mL, blue to very deep blue

solubility

-

solubility

-

form

powder

form

powder or crystals

form

solution

form

solution

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

hematology
histology

application(s)

hematology
histology

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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