Acid Blue 2R (CAS 28631-66-5) — formula C32H25N3Na2O9S3, molecular weight 737.7; category dyes and pigments.
Acid Blue 2R (CAS 28631-66-5) is a chemical raw material in the dyes and pigments category. Its molecular formula C32H25N3Na2O9S3 comprises 32 C, 25 H, 3 N, 2 Na, 9 O, 3 S atoms. Its molecular weight is about 737.7. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 28631-66-5 |
|---|---|
| Molecular Formula | C32H25N3Na2O9S3 |
| Molecular Weight | 737.7 |
| Applications | Benzenesulfonic acid, aminomethylphenyl]-2, 5-cyclohexadien-1-ylidene]methyl], sodium salt (1:2): ACTIVE |
| Category | Dyes & Pigments |
Documented applications: Benzenesulfonic acid, aminomethylphenyl]-2, 5-cyclohexadien-1-ylidene]methyl], sodium salt (1:2): ACTIVE.
Acid Blue 2R is a colorant or pigment compound with CAS registry number 28631-66-5 and molecular formula C32H25N3Na2O9S3 (molecular weight 737.7), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 28631-66-5
Its molecular formula C32H25N3Na2O9S3 comprises 32 C, 25 H, 3 N, 2 Na, 9 O, 3 S atoms.
Also known as: Acid Blue 2R · 酸性蓝B · Acid Blue B
Category: dyes and pigments
The CAS registry number of Acid Blue 2R is 28631-66-5.
Molecular formula C32H25N3Na2O9S3, molecular weight 737.7.
It is also registered under: Acid Blue 2R, 酸性蓝B, Acid Blue B.
Recorded applications: Benzenesulfonic acid, aminomethylphenyl]-2, 5-cyclohexadien-1-ylidene]methyl], sodium salt (1:2): ACTIVE.
Category: Dyes & Pigments.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Acid Blue 2R (CAS 28631-66-5), compiled from public chemistry databases.
| CAS Number | 28631-66-5 |
|---|---|
| PubChem CID | 25113235 |
| Molecular Formula | C32H25N3Na2O9S3 |
| IUPAC Name | disodium;2-amino-3-methyl-5-[[4-(4-sulfonatoanilino)phenyl]-[4-(4-sulfonatophenyl)azaniumylidenecyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate |
| UNII (FDA) | 44D829LK4D |
| Molecular Weight | 737.7 |
|---|---|
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 5 |
| Exact Mass | 737.05483147 |
| Monoisotopic Mass | 737.05483147 |
| Topological Polar Surface Area | 249 |
| Heavy Atom Count | 49 |
Acid Blue 22; 28631-66-5; 44D829LK4D; CI ACID BLUE 22; CHEBI:85681; Aniline Blue (C.I. 42755); NSC-13988
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 酸性蓝2R