Active ingredientChlorpyrifosCat. No. P-C726-001CAS 2921-88-2
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Impurity or related compound
Pharmaceutical analytical standardDiethyl hydrogen phosphate
Synonyms: Chlorpyrifos Impurity 3 (Diethyl Phosphate), Diethyl phosphate, Diethyl acid phosphate, Phosphoric acid, diethyl ester, Diethoxyphosphinic acid, O,O-Diethyl hydrogen phosphate, Ethyl phosphate, di-, Ethyl phosphate, (ETO)2(HO)PO, NSC 97178, Diethylphosphoric acid, O,O-Diethyl phosphate, O,O-diethylphosphoric acid, NSC 289395, Ethyl phosphate ((c2h5o)2(ho)po), Diethoxy dihydroxy phosphonium, Diethyl hydrogen-phosphoric acid, NSC 8840, NSC 289195
- Cat. No.
- P-C726-007
- CAS
- 598-02-7
- Alternative CAS
- 24856-80-2 (ammonium salt)
- 4615-25-2 (zinc salt)
- 53971-30-5 (potassium salt)
- 2870-30-6 (sodium salt)
- 52932-96-4 (alternative CAS, same compound)
- 53397-17-4 (alternative CAS, same compound)
- 51501-07-6 (alternative CAS, same compound)
- 48042-47-3 (alternative CAS, same compound)
- Formula
- C4H11O4P
- Molecular weight
- 154.10 g/mol
- Category
- Impurity or related compound
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
Related products
Active ingredientChlorpyrifosCat. No. P-C726-001CAS 2921-88-2
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Isotopically labelledChlorpyrifos Oxon-d10Cat. No. P-C726-003CAS 1794779-85-3
Isotopically labelledChlorpyrifos-d10Cat. No. P-C726-004CAS 285138-81-0
Impurity3,5,6-trichloropyridin-2(1H)-oneCat. No. P-C726-005CAS 6515-38-4
ImpurityChlorpyrifos OxonCat. No. P-C726-006CAS 5598-15-2
ImpurityO,O-diethyl O-hydrogen phosphorothioateCat. No. P-C726-008CAS 5871-17-0Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.