Yellow 2G (CAS 25739-65-5) — formula C16H12Cl2N4O7S2, molecular weight 507.3; category dyes and pigments.
Yellow 2G (CAS 25739-65-5) is a chemical raw material in the dyes and pigments category. Its molecular formula C16H12Cl2N4O7S2 comprises 16 C, 12 H, 2 Cl, 4 N, 7 O, 2 S atoms. Its molecular weight is about 507.3. Reported physicochemical data: LogP about 2.1. 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 | 25739-65-5 |
|---|---|
| Molecular Formula | C16H12Cl2N4O7S2 |
| Molecular Weight | 507.3 |
| LogP | 2.1 |
| Applications | Benzenesulfonic acid, 5-dichloro-4-[4, 5-dihydro-3-methyl-5-oxo-4--1H-pyrazol-1-yl]-: INACTIVE |
| Category | Colorants|Food Additives |
Documented applications: Benzenesulfonic acid, 5-dichloro-4-[4, 5-dihydro-3-methyl-5-oxo-4--1H-pyrazol-1-yl]-: INACTIVE.
Yellow 2G is a colorant or pigment compound with CAS registry number 25739-65-5 and molecular formula C16H12Cl2N4O7S2 (molecular weight 507.3), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 25739-65-5
Its molecular formula C16H12Cl2N4O7S2 comprises 16 C, 12 H, 2 Cl, 4 N, 7 O, 2 S atoms.
Also known as: Yellow 2G · 黄2G
Category: dyes and pigments / food additives
The CAS registry number of Yellow 2G is 25739-65-5.
Molecular formula C16H12Cl2N4O7S2, molecular weight 507.3.
It is also registered under: Yellow 2G, 黄2G.
Recorded applications: Benzenesulfonic acid, 5-dichloro-4-[4, 5-dihydro-3-methyl-5-oxo-4--1H-pyrazol-1-yl]-: 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 Yellow 2G (CAS 25739-65-5), compiled from public chemistry databases.
| CAS Registry Number | 25739-65-5 |
|---|---|
| PubChem CID | 22843 |
| Molecular formula | C16H12Cl2N4O7S2 |
| IUPAC name | 2,5-dichloro-4-[3-methyl-5-oxo-4-[(4-sulfophenyl)diazenyl]-4H-pyrazol-1-yl]benzenesulfonic acid |
| Molecular Weight | 507.3 |
|---|---|
| XLogP3 | 2.1 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 10 |
| Rotatable Bond Count | 5 |
| Exact Mass | 505.9524465 |
| Monoisotopic Mass | 505.9524465 |
| Topological Polar Surface Area | 183 |
| Heavy Atom Count | 31 |
25739-65-5; 2,5-Dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-(2-(4-sulfophenyl)diazenyl)-1H-pyrazol-1-yl)benzenesulfonic acid; 2,5-Dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[2-(4-sulfophenyl)diazenyl]-1H-pyrazol-1-yl]benzenesulfonic acid; RefChem:197409; Yellow 2G; Acid Leather Yellow 2GL; Benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((4-sulfophenyl)azo)-1H-pyrazol-1-yl)-; Benzenesulfonic acid, 2,5-dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[(4-sulfophenyl)azo]-1H-pyrazol-1-yl]-; NSC324981; UNII-9IEP9ULI22; C.I. 18965; 2,5-dichloro-4-[3-methyl-5-oxo-4-[(4-sulfophenyl)diazenyl]-4H-pyrazol-1-yl]benzenesulfonic acid; SCHEMBL9112323; DTXSID0048000; SCHEMBL23064842; DWYWPBYWDAZKNX-UHFFFAOYSA-N
Yellow 2G · CAS 25739-65-5 · C16H12Cl2N4O7S2.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 黄2G