Pigment Yellow 191 (CAS 129423-54-7) — formula C17H13CaClN4O7S2, molecular weight 525.0; category dyes and pigments.
Pigment Yellow 191 (CAS 129423-54-7) is a dyes and pigments. Its molecular formula C17H13CaClN4O7S2 comprises 17 C, 13 H, 1 Ca, 1 Cl, 4 N, 7 O, 2 S atoms. Its molecular weight is about 525.0. 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 | 129423-54-7 |
|---|---|
| Molecular Formula | C17H13CaClN4O7S2 |
| Molecular Weight | 525.0 |
| Applications | paints, inks, plastics, and as catalysts |
| Category | Dyes & Pigments |
Documented applications: paints, inks, plastics, and as catalysts.
Pigment Yellow 191 is a colorant or pigment compound with CAS registry number 129423-54-7 and molecular formula C17H13CaClN4O7S2 (molecular weight 525.0), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 129423-54-7
Its molecular formula C17H13CaClN4O7S2 comprises 17 C, 13 H, 1 Ca, 1 Cl, 4 N, 7 O, 2 S atoms.
Also known as: Pigment Yellow 191 · 颜料黄191
Category: dyes and pigments
The CAS registry number of Pigment Yellow 191 is 129423-54-7.
Molecular formula C17H13CaClN4O7S2, molecular weight 525.0.
It is also registered under: Pigment Yellow 191, 颜料黄191.
Recorded applications: paints, inks, plastics, and as catalysts.
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 Pigment Yellow 191 (CAS 129423-54-7), compiled from public chemistry databases.
| CAS Registry Number | 129423-54-7 |
|---|---|
| PubChem CID | 71587475 |
| Molecular formula | C17H13CaClN4O7S2 |
| IUPAC name | calcium 4-chloro-5-methyl-2-[[3-methyl-5-oxo-1-(3-sulfonatophenyl)-4H-pyrazol-4-yl]diazenyl]benzenesulfonate |
| UNII (FDA) | C08B82I20P |
| Molecular Weight | 525.0 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 10 |
| Rotatable Bond Count | 3 |
| Exact Mass | 523.9540097 |
| Monoisotopic Mass | 523.9540097 |
| Topological Polar Surface Area | 189 |
| Heavy Atom Count | 32 |
DTXSID4051293; RefChem:1080568; DTXCID801515690; UNII-C08B82I20P; 129423-54-7; C08B82I20P; SCHEMBL29377640; IAOFMMGWUKSXJG-UHFFFAOYSA-L; NS00112484; calcium;4-chloro-5-methyl-2-[[3-methyl-5-oxo-1-(3-sulfonatophenyl)-4H-pyrazol-4-yl]diazenyl]benzenesulfonate
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS |
|---|
Pigment Yellow 191 · CAS 129423-54-7 · C17H13CaClN4O7S2. UNII C08B82I20P.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 颜料黄191