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Key Documents

1.04139

Sigma-Aldrich

Nigrosine (C.I. 50420)

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About This Item

CAS Number:
MDL number:
UNSPSC Code:
41116130
NACRES:
NA.21

Pricing and availability is not currently available.

pH

10 (20 °C, 10 g/L in H2O)

Quality Level

solubility

10 g/L

bulk density

750 kg/m3

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

2-30°C

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1 of 4

This Item
SAB4500514SAB1300948SAB4500509
species reactivity

human, mouse, rat

species reactivity

mouse, human, rat

species reactivity

human

species reactivity

mouse, human, rat

clone

1AD9, monoclonal

clone

polyclonal

clone

polyclonal

clone

polyclonal

biological source

mouse

biological source

rabbit

biological source

rabbit

biological source

rabbit

shipped in

wet ice

shipped in

wet ice

shipped in

dry ice

shipped in

wet ice

UniProt accession no.

P68400

UniProt accession no.

P68400

UniProt accession no.

Q8N752

UniProt accession no.

P48729

General description

The dry dye Nigrosin (C.I. 50420) water-soluble for microscopy Certistain®, is used for the preparation of a staining solution for the visualization of capsule (negative capsule staining) in bacteriological material of human origin. As a CERTISTAIN® dye it is chemically quality-certified according to highest standards and strict specifications.

Application

water-soluble for microscopy Certistain®

Analysis Note

Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (ethanol 50 %): 570 - 580 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.025 g/l; ethanol 50 %): 200 - 300
TLC-Test: passes test
Loss on drying (110 °C): ≤ 15 %
Suitability for microscopy: passes test

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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