Direct Yellow 8 CAS 10130-29-7
| CAS No. | 10130-29-7 |
| Molecular Formula | C24H19N4O5S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Direct Yellow 8 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Direct Yellow 8 (CAS 10130-29-7), a certified reference material (molecular formula C24H19N4O5S2Na, MW 530.55 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Direct Yellow 8 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 530.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Direct Yellow 8 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H19N4O5S2 Na |
| Molecular Weight | 530.55 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 17.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Direct Standards
Recommended Standards
- Ethyl 2-(4-methoxy-2,5-dimethylphenyl)-2-oxoacetate (CAS 1226237-40-6)
- 7-Chloro-3-iodoquinoline (CAS 1424245-91-9)
- 3,4-Dicyanobenzenesulfonic acid (CAS 170697-23-1)
- 3333-13-9 4-Isopropenyltoluene p-Allyltoluene Toluene, p-allyl- (8CI) Benzene, 1-methyl-4-(2-propen-1-yl)- Benzene, 1-methyl-4-(2-propenyl)- 1-Allyl-4-methylbenzene 4-Allyltoluene EINECS 222-063-5 p-Methylallylbenzene NSC 73971 3-p-Tolylpropene (CAS 3333-13-9)
- 1,3-Benzenedicarboxylic acid, polymer with 2,5-furandione and 2-methyl-1,3-propanediol (CAS 135108-89-3)
- Tert-butyl 3-amino-2-methylbenzoate (CAS 1247920-74-6)
- PAT-505 (CAS 1782070-22-7)
- Elagolix Impurity 105 (CAS CATO-C4X-2068105)
- 3-[[2-Methyl-5-oxooxazol-4(5H)-ylidene]methyl]phenyl Acetate (CAS 41888-66-8)
- Osteoblast Activating Peptide (mouse, rat) (H-7262.0500) (CAS 1222950-80-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com