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Merck
모든 사진(1)

문서

1.04213

Sigma-Aldrich

New fuchsin (C.I. 42520)

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About This Item

실험식(Hill 표기법):
C22H24ClN3
CAS Number:
Molecular Weight:
365.90
MDL number:
UNSPSC 코드:
41116130
NACRES:
NA.21

형태

solid

Quality Level

구성

Dye, ≥75% spectrophotometric assay

pH

3-4 (20 °C, 10 g/L in H2O)

solubility

practically insoluble 10 g/L

벌크 밀도

450 kg/m3

응용 분야

diagnostic assay manufacturing
hematology
histology

저장 온도

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 key

ORDGVBRMUJCHEO-UHFFFAOYSA-M

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일반 설명

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.

애플리케이션

For microscopy Certistain®

분석 메모

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

법적 정보

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

픽토그램

Exclamation markHealth hazardEnvironment

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

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

표적 기관

Respiratory system

Storage Class Code

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

WGK

WGK 3


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