Phenolphthalein anilide CAS 6607-41-6
| CAS No. | 6607-41-6 |
| Molecular Formula | C26H19NO3 |
| Molecular Weight | 393.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Phenolphthalein anilide.
Phenolphthalein anilide (CAS 6607-41-6), molecular formula C26H19NO3 and molecular weight 393.43 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Phenolphthalein anilide (C26H19NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 393.43 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Phenolphthalein anilide 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 | C26H19NO3 |
| Molecular Weight | 393.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Phenolphthalein Standards
- Phenolphthalein (CAS 77-09-8)
- Phenolphthalein β-D-Glucuronide (CAS 15265-26-6)
- Phenolphthalein complex indicator (CAS 25296-54-2)
- Phenolphthalein monophosphate (dicyclohexylammonium) (CAS 14815-59-9)
- Phenolphthalein 4′-O-β-D-glucuronide, sodium salt (CAS 6820-54-8)
- Phenolphthalein Disodium Salt (CAS 518-51-4)
- Phenolphthalein disulfate potassium salt hydrate (CAS 62625-16-5)
- 68807-90-9 Phenolphthalein diphosphate tetrasodium salt sodium 4,4'-(3-oxo-1,3-dihydroisobenzofuran-1,1-diyl)bis(4,1-phenylene) diphosphate (CAS 68807-90-9)
Recommended Standards
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- 5-Cyano-N-[(1E)-{[(2-fluorophenyl)methoxy]imino}methyl]-3-methyl-4-phenylthiophene-2-carboxamide (CAS 343372-44-1)
- Ticagrelor Impurity 142 (CAS 866551-95-3)
- dimethyl[2-(pyridin-4-yl)ethenyl]amine (CAS 20973-83-5)
- 2-Bromo-4-methyl-5-nitrophenol (CAS 103448-24-4)
- 2,5-Dibromoselenophene (CAS 1755-36-8)
- 3-(4-Fluorophenyl)chroman-4-one (CAS 1143863-69-7)
- (4-(1H-benzo[d]imidazol-1-yl)phenyl)methanol (CAS 451485-67-9)
- 1-(4-Bromobenzyl)imidazole (CAS 72459-46-2)
- Tetrahydro-4H-pyran-4-ol-3,3,4,5,5-d5 (CAS 1219795-46-6)
- 1,1'-(Dihydropyrimidine-1,3(2H,4H)-diyl)bis(2,2-dimethylpropan-1-one) (CAS 116046-92-5)
- {[4-(Benzyloxy)phenyl]methyl}(diphenylmethyl)amine (CAS 774193-22-5)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
Why CATO?
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