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 chemical raw material in the dyes and pigments category. 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. 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