2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-(4-aminophenyl)diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)
CAS Registry Number®
5850-39-5
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CAS Name
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-(4-aminophenyl)diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)Molecular Formula
C22H18N6O7S2.2NaCite this Page
2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-(4-aminophenyl)diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2). CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. http://commonchemistry.cas.org/detail?cas_rn=5850-39-5 (retrieved ) (CAS RN: 5850-39-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).Compound Properties
Melting Point (1)
>300 °C
Source(s)
Other Names and Identifiers
InChI
InChI=1S/C22H18N6O7S2.2Na/c23-13-6-8-15(9-7-13)26-27-20-16(36(30,31)32)10-12-11-17(37(33,34)35)21(22(29)18(12)19(20)24)28-25-14-4-2-1-3-5-14;;/h1-11,29H,23-24H2,(H,30,31,32)(H,33,34,35);;
InChIKey
InChIKey=QGUPYUJOYPRMOU-UHFFFAOYSA-N
SMILES
NC=1C2=C(C=C(S(=O)(=O)O)C1N=NC3=CC=C(N)C=C3)C=C(S(=O)(=O)O)C(N=NC4=CC=CC=C4)=C2O.[Na]
Canonical SMILES
[Na].O=S(=O)(O)C1=CC2=CC(=C(N=NC3=CC=C(N)C=C3)C(N)=C2C(O)=C1N=NC=4C=CC=CC4)S(=O)(=O)O
Other Names for this Substance
- 2,7-Naphthalenedisulfonic acid, 4-amino-3-[2-(4-aminophenyl)diazenyl]-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2)
- C.I. Acid Green 20, disodium salt
- 2,7-Naphthalenedisulfonic acid, 4-amino-3-[(4-aminophenyl)azo]-5-hydroxy-6-(phenylazo)-, disodium salt
- C.I. Acid Green 20
- C.I. 20495
Deleted or Replaced CAS Registry Numbers
84842-82-0
