Alizarin red S
CodePack SizePrice 
256S125g£9.99Add to Cart

Product Info
CAS-Number: 130-22-3
In Stock: Yes
Hazchem: No

Documents
Click here for MSDS
Click here for TECH

Alizarin Red

  • Synonyms: 3,4-dihydroxy-2-anthraquinone­sulfonic acid sodium salt, alizarin sulfonatesodium, alizarin carmine, sodium alizarinsulfonate, C.I. 58005
  • Molecular formula: C14H7NaO7S
  • CAS No: 130–22–3
  • EINECS No: 204–981–8
  • Appearance: yellow-orange to red powder
  • Dye Content: >70%
  • Transition Range:
    • pH 4.3 – 6.3 Yellow – Pink
    • pH 9.4 – 12.0 Brown orange – Violet
  • Solubility @ 0.1% (Water): Clear solution
  • Wavelength of max absorption in 0.1N NaOH: 1 max 553 –559 nm
  • Wavelength of max absorption in 0.1N NaOH: 2 max 592 – 599 nm
  • Absorptivity (E 1% in 1cm cell at 556 1max): >350
  • Absorptivity (E 1% in 1cm cell at 592 2max): >325
  • Loss on drying (110 C): <5%

Acid-Base indicator – alizarin red S

  • Approximate pH range for color change: 4.6–6.0
  • Color of acid form: yellow
  • Color of base form: red

Keywords:

alizarin red, buy alizarin red, where to buy alizarin red, 130-22-3, 204-981-8, C14H7NaO7S, alizarin sulfonatesodium, alizarin carmine, sodium alizarinsulfonate,
Join our mailing list!
Send Us A Message
Shopping Cart
No. Items: 0
Subtotal: £0
CHECKOUT >>
Shipping Location