Phthalic acid dipotassium salt
- CAS4409-98-7
- CatalogueRS-P336008
- FormulaC8H4K2O4
- MW242.31
On this page
structure on request
Product identification
| Product name | Phthalic acid dipotassium salt |
|---|---|
| Catalogue No. | RS-P336008 |
| CAS No. | 4409-98-7 |
| Molecular formula | C8H4K2O4 |
| Molecular weight | 242.31 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Fine Chemicals |
| Drug substance | Phthalic Acid |
| Storage | Refer to the certificate of analysis (COA) supplied with each lot |
| Intended use | For laboratory and research use only. Not for human or veterinary use. |
What is stated on the certificate
Content and purity are assigned per lot and stated on the certificate of analysis issued for the batch you receive — they are not a catalogue-level figure. The certificate records the tests performed, the specification applied and the result obtained for that lot.
| Field | Basis |
|---|---|
| Identity | Spectroscopic and chromatographic methods appropriate to the material |
| Purity | Chromatographic purity, area normalisation unless stated otherwise |
| Assay / content | Mass balance, corrected for the stated volatiles and residue |
| Catalogue and batch numbers | RS-P336008 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
What documentation is supplied with this lot?
Is the assigned value given on an “as is” basis?
How should this material be stored?
Do you supply pack sizes other than those listed?
Finding this standard
Buyers reach this compound by CAS number, by catalogue number, through the drug substance it belongs to, or through the type of standard it is. Those routes all start here:
- Other impurities of Phthalic Acid
- Fine Chemicals of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-P336008
- Request a quotation for RS-P336008
Searching another way? Send the structure, a SMILES string or the pharmacopoeial name — a CAS number is not required for a non-compendial impurity. Write to sales@rssechem.com.
Other standards of Phthalic Acid
All 13 further standards are listed here — every link is in the page, not loaded later.
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4-Hydroxyphthalic acid
IN STOCKRS-P336002 -
4-mercaptophthalic acid
IN STOCKRS-P336006 -
Phthalic acid 1-rubidium salt
IN STOCKRS-P336010 -
Phthalic acid hydrogen 1-(o-methylbenzyl) ester
CUSTOM SYNTHESISRS-P336014 -
PHTHALIC ACID MONO-N-BUTYL ESTER COPPER(II) SALT
IN STOCKRS-P336009 -
Phthalic acid, allyl ethyl ester
IN STOCKRS-P336012 -
PHTHALIC ACID, MONOBUTYL ESTER, COPPER(II) SALT
CUSTOM SYNTHESISRS-P336007 -
Phthalic Acid-d4 1-Ethylpropyl Ester
IN STOCKRS-P336021 -
Phthalic Acid Impurity 50
IN STOCKRS-U008116 -
Phthalic Acid Impurity 51
IN STOCKRS-P336005 -
Phthalic Acid Impurity 68
CUSTOM SYNTHESISRS-P336004 -
Phthalic Acid Impurity 69
IN STOCKRS-P336001 -
Phthalic Acid Impurity 72
IN STOCKRS-P336003
Pharmacopoeial names (EP, USP, BP, JP) are used for identification purposes only and do not imply endorsement by those bodies. This product is supplied for laboratory and research use only — not for human or veterinary use.











