Fast Yellow AB (CAS 79873-36-2) — formula C12H9N3Na2O6S2, molecular weight 401.3; category dyes and pigments.
Fast Yellow AB (CAS 79873-36-2) is a dyes and pigments. Its molecular formula C12H9N3Na2O6S2 comprises 12 C, 9 H, 3 N, 2 Na, 6 O, 2 S atoms. Its molecular weight is about 401.3. Dyes and pigments impart color to textiles, plastics, coatings and inks, with attention to fastness, dispersibility and application process. Applied in textile dyeing, plastic coloring, inks and coatings, paper and leather processing. 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 | 79873-36-2 |
|---|---|
| Molecular Formula | C12H9N3Na2O6S2 |
| Molecular Weight | 401.3 |
| Applications | Cosmetics, Benzenesulfonic acid, 2-amino-5, sodium salt (1:?): INACTIVE |
| Category | Colorants|Food Additives |
Documented applications: Cosmetics, Benzenesulfonic acid, 2-amino-5, sodium salt (1:?): INACTIVE.
Fast Yellow AB is a colorant or pigment compound with CAS registry number 79873-36-2 and molecular formula C12H9N3Na2O6S2 (molecular weight 401.3), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 79873-36-2
Its molecular formula C12H9N3Na2O6S2 comprises 12 C, 9 H, 3 N, 2 Na, 6 O, 2 S atoms.
Also known as: Fast Yellow AB · 食品黄2 · FOOD YELLOW 2
Category: dyes and pigments / food additives
The CAS registry number of Fast Yellow AB is 79873-36-2.
Molecular formula C12H9N3Na2O6S2, molecular weight 401.3.
It is also registered under: Fast Yellow AB, 食品黄2, FOOD YELLOW 2.
Recorded applications: Cosmetics, Benzenesulfonic acid, 2-amino-5, sodium salt (1:?): INACTIVE.
Category: Colorants / Food Additives.
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 Fast Yellow AB (CAS 79873-36-2), compiled from public chemistry databases.
| CAS Registry Number | 79873-36-2 |
|---|---|
| PubChem CID | 75918 |
| Molecular formula | C12H9N3Na2O6S2 |
| IUPAC name | disodium;2-amino-5-[(4-sulfonatophenyl)diazenyl]benzenesulfonate |
| UNII (FDA) | DBA6V571CO |
| Molecular Weight | 401.3 |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 2 |
| Exact Mass | 400.97281593 |
| Monoisotopic Mass | 400.97281593 |
| Topological Polar Surface Area | 182 |
| Heavy Atom Count | 25 |
79873-36-2; Benzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:?); RefChem:1078712; DTXSID701090457; Fast Yellow AB; 2706-28-7; Yellow acid; Acid yellow 9; C.I. Acid Yellow 9; Yellow Fast; Cilefa Yellow R; Fast Yellow S; Fast Yellow Y; Acid Yellow AT; Lacquer Yellow T; Amacid Yellow RG
| Regulatory & Food Contact | CIR / INCI: Cosmetic colorant |
|---|
| Reported hazard statements | H315 (100%), H319 (100%), H335 (100%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
FOOD YELLOW 2 · CAS 79873-36-2 · C12H9N3Na2O6S2. UNII DBA6V571CO.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 食品黄2