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1.04213

Sigma-Aldrich

New fuchsin (C.I. 42520)

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About This Item

經驗公式(希爾表示法):
C22H24ClN3
CAS號碼:
分子量::
365.90
MDL號碼:
分類程式碼代碼:
41116130
NACRES:
NA.21

形狀

solid

品質等級

成份

Dye, ≥75% spectrophotometric assay

pH值

3-4 (20 °C, 10 g/L in H2O)

溶解度

practically insoluble 10 g/L

體積密度

450 kg/m3

應用

diagnostic assay manufacturing
hematology
histology

儲存溫度

2-30°C

InChI

1S/C22H24N3.ClH/c1-13-10-16(4-7-19(13)23)22(17-5-8-20(24)14(2)11-17)18-6-9-21(25)15(3)12-18;/h4-12H,23-25H2,1-3H3;1H/q+1;/p-1

InChI 密鑰

ORDGVBRMUJCHEO-UHFFFAOYSA-M

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一般說明

The dry dye New fuchsin (C.I. 42520) for microscopy Certistain® is used for the preparation of a staining solution that can be used for staining of histological tissue sections or other samples of human origin according to Ziehl-Neelsen, Gram staining as well as in combination with Schiff′s reagent. As a Certistain® dye it is chemically quality-certified according to highest standards and strict specifications. New fuchsin belongs to the group of triaminotriphenylmethane dyes.
The dye is used in Ziehl-Neelsen and Gram staining as well as for methods with Schiff′s reagent.
The cell wall of acid-fast bacteria (AFB) has a high proportion of wax and lipids and hence absorbs dyes only very slowly. As a measure to enhance the absorption of the fuchsin dye and thus the formation of the mycolate-fuchsin complex in the cell wall, the carbolfuchsin solution applied to the specimen is normally heated to evaporation point. If the Kinyoun carbolfuchsin solution is used, the heating of the solution is dispensable. Consequently, the release of hazardous phenolic vapors will be avoided.
Once the AFB have absorbed the fuchsin dye, it is virtually impossible to decolorize them again, even when they are intensively treated with a decolorizing solution such as e. g. hydrochloric acid in ethanol. Accordingly, AFB are termed as acid- and alcohol-fast for staining, and are stained red in the microscopic visualization. Correspondingly, all non-acid-fast microorganisms are counterstained with an appropriate dye.
Pretreatment of the specimens with Sputofluol dissolves the bacteria from the surrounding viscid sputum and cell material. Sputofluol also has a disinfectant effect, with the result that any microorganisms that are present are killed off.
As Certistain® dye it is chemically quality-certified according to highest standards and strict specifications.

應用

For microscopy Certistain®

分析報告

Dye content (spectrophotometrically): ≥ 75 %
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ max (ethanol 50 %): 553 - 556 nm
Spec. Absorptivity A 1%/1cm (λ<SUB>m</SUB><SUB>a</SUB><SUB>x</SUB>; 0.003 g/l; ethanol 50 %): 1810 - 2430
TLC-Test: passes test
Loss on drying (110 °C): ≤ 10 %
Suitability for microscopy: passes test

法律資訊

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany
SPUTOFLUOL is a trademark of Merck KGaA, Darmstadt, Germany

訊號詞

Danger

危險分類

Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

水污染物質分類(WGK)

WGK 3


分析證明 (COA)

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