Skip to Content
Merck
All Photos(2)

Key Documents

274216

Sigma-Aldrich

Astrazon Orange G

Synonym(s):

Basic Orange 21

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C22H23ClN2
CAS Number:
Molecular Weight:
350.88
Colour Index Number:
48035
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

form

powder

Quality Level

solubility

methanol: water (1:1): 10 mg/mL, clear to hazy, red-orange

λmax

490 nm

ε (extinction coefficient)

≥19000 at 487-493 nm
≥3000 at 268-274 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Cl-].Cc1[nH]c2ccccc2c1\C=C\C3=[N+](C)c4ccccc4C3(C)C

InChI

1S/C22H22N2.ClH/c1-15-16(17-9-5-7-11-19(17)23-15)13-14-21-22(2,3)18-10-6-8-12-20(18)24(21)4;/h5-14H,1-4H3;1H

InChI key

ZOMLUNRKXJYKPD-UHFFFAOYSA-N

Application

Metachromatic dye

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service