Acid Blue 25
Also known as: C.I. Acid Blue 25, C.I. 62055, Acid Anthracene Blue A, Acid Blue AS, Acid Blue GRL, Acid Light Blue A, Acid Naphthol Blue, Alizarine Saphirol A, Sodium 1-amino-4-anilino-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, 1-amino-4-phenylamino-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid monosodium salt
Acid Blue 25 (CAS 6408-78-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H13N2NaO5S and a molecular weight of 416.382 g/mol. Key property: a melting point of >300ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 6408-78-2
- Jingsj CID
- J-26927-2
- Molecular Formula
- C20H13N2NaO5S
- Molecular Weight
- 416.382 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >300ºC |
|---|---|
| Exact Mass | 416.044281 |
| PSA | 137.77000 |
| LogP | 4.42690 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2922399090 |
|---|---|
| Summary | 2922399090 other amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Acid Blue 25?
The CAS number of Acid Blue 25 is 6408-78-2.
What are the molecular formula and molecular weight of Acid Blue 25?
Acid Blue 25 has molecular formula C20H13N2NaO5S and molecular weight 416.382 g/mol.
Is Acid Blue 25 hazardous?
Acid Blue 25 has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Acid Blue 25?
For Acid Blue 25, Upstream Products: 1-amino-4-bromoanthraquinone-2-sulfonic acid sodium salt, Bromaminic acid; Downstream Products: 1,4-Diaminoanthraquinone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Acid Blue 25 (CAS 6408-78-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26927-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.