(1,3-Phenylenebis(methylene))diphosphonic acid CAS 144052-40-4
| CAS No. | 144052-40-4 |
| Molecular Formula | C8H12O6P2 |
| Molecular Weight | 266.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(1,3-Phenylenebis(methylene))diphosphonic acid (CAS 144052-40-4), molecular formula C8H12O6P2 and molecular weight 266.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, (1,3-Phenylenebis(methylene))diphosphonic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.12 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (1,3-Phenylenebis(methylene))diphosphonic acid 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 | C8H12O6P2 |
| Molecular Weight | 266.12 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1998 |
Related Phenylenebis Standards
- (1,2-Phenylenebis(methylene))bis(phosphonic acid) (CAS 42104-58-5)
- (1,4-Phenylenebis(methylene))diphosphonic acid (CAS 4546-06-9)
- 2,2'-(1,4-Phenylenebis(oxy))diacetyl chloride (CAS 1889-01-6)
- 5,5'-(1,4-Phenylenebis(oxy))dipentanenitrile (CAS 47096-71-9)
- 3,3'-(1,2-Phenylenebis(oxy))bis(propane-1,2-diol) (CAS 56266-47-8)
- 3,3-[1,3-Phenylenebis(oxy)]dipropanoic acid (CAS 61479-41-2)
- 3,3'-(1,4-Phenylenebis(oxy))bis(butan-2-one) (CAS 477865-72-8)
- 1,2-Phenylenebis(phenylmethanone) (CAS 1159-86-0)
Recommended Standards
- 2-(3-Ethoxy-5-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1416367-03-7)
- 2-[2-Fluoro-5-(methoxymethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1445601-74-0)
- 2-iodo-1-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1388711-09-8)
- 2-(3-Ethoxy-2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1509931-76-3)
- 3-Methyl-5,5-diphenyl-2-thioxoimidazolidin-4-one (CAS 21083-48-7)
- (S)-2-Amino-3-(2H-tetrazol-2-yl)propanoic acid (CAS 405150-16-5)
- 2,4-Dichloro-6-(dibenzo[b,d]furan-2-yl)-1,3,5-triazine (CAS 1699739-77-9)
- 4-(4-Fluorophenyl)-2-methyl-4-oxobutanoic acid (CAS 68415-18-9)
- Methyl 4-methyl-2-(m-tolylamino)pyrimidine-5-carboxylate (CAS 1374509-41-7)
- 3-Phenyl-1-(3-pyridinyl)-1-propanone (CAS 1802-36-4)
- Galanin (mouse, rat) (CAS 114547-31-8)
- 2-Methyl-4,5-bis(methylsulfonyl)-benzoic Acid Methyl Ester (CAS 373357-96-1)
- 3-Ethyl 2-methyl 6-oxooctahydroisoquinoline-2,3(1H)-dicarboxylate (CAS 128073-42-7)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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