Alizarin Red S paramete

CAS No.: 130-22-3
MF: C14H7NaO7S
Place of Origin: china
Classification: High Purity Reagents
Model Number: LYN-130-22-3
CAS: 130-22-3
Shelf Life: 2 Years
COA: available
Appearance: Yellow – orange powder
Other Names: Alizarin red S
EINECS No.: 130-22-3
Purity: 99%
Brand Name: Lookchemical
Product name: Alizarin red S
Packing: 25kg/drum
Sample: available
Color: Yellow – orange powder

Introduction of Alizarin Red S

Alizarin red S, also known as sodium alizarin xanthate, is an anthraquinone derivative and is the sodium salt of alizarin sulfonate. Soluble in hot water and ethanol, insoluble in benzene and carbon tetrachloride.

Orange-yellow or yellow-brown powder, its aqueous solution is light yellow-brown, turns yellow after adding hydrochloric acid, and turns blue-purple after adding sodium hydroxide.

It can chelate with calcium salts in calcium carbonate or calcium phosphate to form an orange-red complex. Alizarin Red S tends to give more reliable results for staining small amounts of sediment. It is often used in combination with Fast Green or Mayer’s hematoxylin staining solution to form an orange-red precipitate, which is suitable for staining tissues with a small amount of calcium salts.

Alizarin red S has been widely used as a dye-type complexing agent in spectrophotometric analysis.


Melting point  >250°C
pka  4.5, 11(at 25℃)
PH Range  4.3(yellow)-6.3(violet)
λmax  556nm, 596nm, 423nm, 546nm
storage temp.  Store at +5°C to +30°C.
solubility  H2O: soluble1mg/mL
Merck  14,8573


1.Alizarin Red S is widely used as a dye, acid-base indicator and is one of the representative dyestuffs with a complex structure as well as a large chemical oxygen demand (COD) value.

2.It is often used in woolen, worsted, carpet and blanket

3.Determination of fluoride. PH3.7 (yellow)-5.2(purple). It can produce colorimetric compounds with many metal ions for chromogenic reaction and colorimetric determination of zirconium, thorium, aluminum, Chemicalbook titanium and beryllium. Microscopic dyes, in vivo staining of nerve tissue, chromosomal staining in plant cytology, and reagents for the determination of Alopectin.

4.Biochemical research

Product service

1. Certificate Of Analysis (COA)

2. Material Safety Data Sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of Aanlysis (MOA)

5. Nuclear Magnetic Resonance (NMR)

6. Packing pictures and loading video before loading

7. Free Sample

8. Factory audit

Reviews (0)
0 ★
0 Ratings
5 ★
4 ★
3 ★
2 ★
1 ★

There are no reviews yet.

Be the first to review “Alizarin Red S 130-22-3”

Your email address will not be published. Required fields are marked *

Scroll To Top

My Cart

Shopping cart is empty!

Continue Shopping