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4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid

Also known as: (3E)-5-hydroxy-3-(naphthalen-1-ylhydrazinylidene)-4-oxonaphthalene-2,7-disulfonic acid, 1'.8'-Dihydroxy-[1.2']azonaphthalin-disulfonsaeure-(3'.6'), 1-Naphthylazo-chromotropsaeure, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[2-(1-naphthalenyl)diazenyl]-, 4,5-Dihydroxy-3-[1]naphthylazo-naphthalene-2,7-disulfonic acid, 4,5-dihydroxy-3-[1]naphthylazo-naphthalene-2,7-disulfonic acid, Naphthalin-(1 azo 2)-(1.8-dioxy-naphthalin-disulfonsaeure-(3.6))

4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid (CAS 62106-17-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H14N2O8S2 and a molecular weight of 474.46400 g/mol. Key property: a density of 1.69g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
62106-17-6
Jingsj CID
J-1026719-3
Molecular Formula
C20H14N2O8S2
Molecular Weight
474.46400 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Density1.69g/cm3
Exact Mass474.01900
PSA187.19000
LogP4.91980
Refractive Index1.747

Customs & Trade Information

HS Code2927000090
Summary2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid?

The CAS number of 4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid is 62106-17-6.

What are the molecular formula and molecular weight of 4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid?

4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid has molecular formula C20H14N2O8S2 and molecular weight 474.46400 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4,5-Dihydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid (CAS 62106-17-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1026719-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.