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Merck

G5637

Giemsa stain

certified by the Biological Stain Commission, powder or crystals

Sinónimos:

Azure mixture sicc. Giemsa stain

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Fórmula empírica (notación de Hill):
C14H14ClN3S
Número CAS:
51811-82-6
Peso molecular:
291.80
UNSPSC Code:
12171500
PubChem Substance ID:
329799943
NACRES:
NA.47
MDL number:
MFCD00081642

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Nombre del producto

Giemsa stain, certified by the BSC

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

agency

certified by the BSC

form

powder or crystals

technique(s)

microbe id | staining: suitable

color

dark green to very dark green

mp

300 °C (lit.)

solubility

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

absorption

≥0.6 at 647-653 nm in methanol at 0.005 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

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Application

Certified for Giemsa stain for blood films and for the Wolbach′s Giemsa method for paraffin sections.
Giemsa stain has been used for the staining of cells and blood films.It is required for the staining of azurophil granules and is an excellent stain for inclusion bodies.Its applications can be seen in hematology for blood and bone marrow specimens, bacteriology, clinical cytology specimens, histological biopsies, and tumor samples.

General description

Giemsa is a versatile polychromatic stain, which is suitable for staining a diverse range of specimens. It is a buffered thiazine-eosinate solution designed to provide coloration of blood cells. Giemsa’s stain is frequently used for diagnostic purposes in hematology to differentiate the nuclear and cytoplasmic morphology of platelets, RBCs, WBCs, and parasites. It is frequently used in combination with other dye solutions as May-Grunwald’s solution for Pappenheim (MGG) and Wright-Giemsa. The Giemsa stain was adapted to histology due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. Giemsa′s staining solution is composed of methylene blue, azure, and eosin.

Other Notes

Nuclei will be varying shades of purple. Cytoplasmic staining will be varying shades of blue to light pink. Fine reddish to lilac granules may be present in cytoplasm of some cell types. Basophils will demonstrate dark blue black granules in the cytoplasm. Eosinophils will demonstrate bright orange granules in the cytoplasm. Red blood cells should be pink to orange

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
SHBN6316
SHBM6421
SHBM3613
SHBM1744
SHBL5853

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