Sulfasalazine Impurity 44
- CAS791103-29-2
- CatalogueRS-S045015
- FormulaC17H16N4O4S2
- MW404.46
On this page
Product identification
| Product name | Sulfasalazine Impurity 44 |
|---|---|
| Catalogue No. | RS-S045015 |
| CAS No. | 791103-29-2 |
| Molecular formula | C17H16N4O4S2 |
| Molecular weight | 404.46 |
| Availability | Back order— restocking can be arranged, about 1–2 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Sulfasalazine |
| Also known as | 4-amino-N-(4-(N-(pyridin-2-yl)sulfamoyl)phenyl)benzenesulfonamide; Sulfasalazine Impurity 12 |
| 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-S045015 / 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 Sulfasalazine
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-S045015
- Request a quotation for RS-S045015
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 Sulfasalazine
All 50 further standards are listed here — every link is in the page, not loaded later.
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Mesalazine Impurity 20;Sulfasalazine EP Impurity I
IN STOCKRS-Z401F6T -
Sulfasalazine EP Impurity A
CUSTOM SYNTHESISRS-S045003 -
Sulfasalazine EP Impurity B
BACK ORDERRS-S045005 -
Sulfasalazine EP Impurity C
IN STOCKRS-S045012 -
Sulfasalazine Impurity D
IN STOCKRS-S045013 -
Sulfasalazine Impurity F
IN STOCKRS-S045014 -
Sulfasalazine EP Impurity G (Disodium Salt)
BACK ORDERRS-S045004 -
Mesalazine Impurity 20;Sulfasalazine EP Impurity I
IN STOCKRS-S045008 -
(E)-2-Hydroxy-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic Acid
CUSTOM SYNTHESISRS-P012413 -
Sulfasalazine EP Impurity I
IN STOCKRS-P012092 -
1,3-Dibromo-2-(methoxymethoxy)benzene
CUSTOM SYNTHESISRS-Z398URD -
2-Hydroxy-5-((4-sulfamoylphenyl)diazenyl)benzoic Acid
IN STOCKRS-P030084 -
3-[4-(2-Pyridylsulfamoyl)phenyl]Sulfasalazine
IN STOCKRS-I001078 -
3-Bromo-2-hydroxybenzoic acid
IN STOCKRS-P003706 -
4-(Acetylamino)-3-bromobenzenesulfonyl Chloride
CUSTOM SYNTHESISRS-Z401LUO -
4-[2-(Sulfinoamino)-1(2H)-pyridinyl]-benzenediazonium Inner Salt
CUSTOM SYNTHESISRS-Z401JRN -
4-Amino-N-(6-methylpyridin-2-yl)benzenesulfonamide
CUSTOM SYNTHESISRS-P152391 -
4-Bromo-N-(pyridin-2-yl)benzenesulfonamide
CUSTOM SYNTHESISRS-D119112 -
4-Chloro-N-(pyridin-2-yl)benzenesulfonamide
IN STOCKRS-D110023 -
5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt
BACK ORDERRS-Z401I5F -
5-[(p-Sulfophenyl)azo]salicylic Acid Methyl Ester Potassium Salt
CUSTOM SYNTHESISRS-Z401KNQ -
5-[[p-(Chlorosulfonyl)phenyl]azo]salicylic Acid Methyl Ester Acetate
IN STOCKRS-Z407N6T -
Descarboxysulfasalazine
IN STOCKRS-S045020 -
N-(4-(N-(6-Methylpyridin-2-yl)sulfamoyl)phenyl)acetamide
IN STOCKRS-P025359 -
N-Acetyl sulfapyridine
IN STOCKRS-U048138 -
N-Acetylsulfamerazine
IN STOCKRS-U211LOT -
Neopentyl 4-Bromobenzenesulfonate
IN STOCKRS-N1641004 -
Sulfasalazine-d4
IN STOCKRS-S045023 -
Sulfasalazine Impurity 22
IN STOCKRS-S045030 -
Sulfasalazine Impurity 23
IN STOCKRS-S045031 -
Sulfasalazine Impurity 24
IN STOCKRS-S045032 -
Sulfasalazine Impurity 25
IN STOCKRS-S045019 -
Sulfasalazine Impurity 26
IN STOCKRS-S045033 -
Sulfasalazine Impurity 27
IN STOCKRS-S045034 -
Sulfasalazine Impurity 29
CUSTOM SYNTHESISRS-S045011 -
Sulfasalazine Impurity 32
BACK ORDERRS-S045035 -
Sulfasalazine Impurity 34 (N-Nitroso Sulfasalazine Impurity 33)
IN STOCKRS-S045002 -
Sulfasalazine Impurity 41
IN STOCKRS-S045006 -
Sulfasalazine Impurity 42
BACK ORDERRS-S045007 -
Sulfasalazine Impurity 43
BACK ORDERRS-S045010 -
Sulfasalazine Impurity 45
BACK ORDERRS-S045016 -
Sulfasalazine Impurity 46
IN STOCKRS-S045027 -
Sulfasalazine Impurity 50
IN STOCKRS-S045036 -
Sulfasalazine Impurity 51
BACK ORDERRS-S045021 -
Sulfasalazine Impurity 52
IN STOCKRS-S045024 -
Sulfasalazine Impurity 53
IN STOCKRS-S045025 -
Sulfasalazine Impurity 54
IN STOCKRS-S045026 -
Sulfasalazine Impurity 55
IN STOCKRS-S045028 -
Sulfasalazine Impurity 56
CUSTOM SYNTHESISRS-S045029
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.












![Chemical structure of 3-[4-(2-Pyridylsulfamoyl)phenyl]Sulfasalazine](/structures/w4/JISAHTSZQJGNHD-UHFFFAOYSA-N.webp?v=8)


![Chemical structure of 4-[2-(Sulfinoamino)-1(2H)-pyridinyl]-benzenediazonium Inner Salt](/structures/w4/APTAEDUWYJFPPL-UHFFFAOYSA-O.webp?v=8)



![Chemical structure of 5-[(p-Sulfophenyl)azo]salicylic Acid Acetate Methyl Ester Potassium Salt](/structures/w4/IVDCJFYMQPXNTC-UHFFFAOYSA-M.webp?v=8)
![Chemical structure of 5-[(p-Sulfophenyl)azo]salicylic Acid Methyl Ester Potassium Salt](/structures/w4/OVOULNAPGCLDEI-GEEYTBSJSA-M.webp?v=8)
![Chemical structure of 5-[[p-(Chlorosulfonyl)phenyl]azo]salicylic Acid Methyl Ester Acetate](/structures/w4/RIMYRSKEKAXGGZ-UHFFFAOYSA-N.webp?v=8)


























