Orange II sodium salt

ALDRICH/195235 - (Certified by the Biological Stain Commission), Dye content ≥85 %

Synonym: 4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A; Orange II; Tropaeolin 000 No. 2

CAS Number: 633-96-5
Empirical Formula (Hill Notation): C₁₆H₁₁N₂NaO₄S
Molecular Weight: 350.32
EC Number: 211-199-0
MDL Number: MFCD00011657
Linear Formula: C₁₆H₁₁N₂NaO₄S
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-195235-25G	25 g	$62.20 1/EA	Add To Favorites
45-195235-100G	100 g	$209.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 195235-25G

Properties
Descriptions
Safety Info.
Basic Data

ε (extinction coefficient)	≥17000 at 480-486 nm in water at 0.01 g/L
	≥26500 at 225-231 nm in water at 0.01 g/L
	≥7500 at 307-313 nm in water at 0.01 g/L
λ_max	483 nm
application(s)	diagnostic assay manufacturing hematology histology
composition	Dye content, ≥85%
form	powder
InChI	1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1/b18-17+;
InChI key	CQPFMGBJSMSXLP-ZAGWXBKKSA-M
product line	BioXtra
Quality Level	200
SMILES string	[Na+].Oc1ccc2ccccc2c1N=Nc3ccc(cc3)S([O-])(=O)=O
storage temp.	room temp

Application:	Certified for use in the Wilson-Ezrin method for pituitary acidophils, as a counterstain following Heidenhain′s or Weigert′s hematoxylin on paraffin sections, and as a substitute for orange G in Floemming′s triple stain.
Packaging:	25, 100 g in poly bottle

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Storage Temp.	room temp
Colour Index Number	15510; 15510
UNSPSC	12171500

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