Reference standards
The wide portfolio of Alsachim's reference standards covers a broad range of applications: pharmaceutical, environmental analysis, food and beverages, doping, toxicology and forensic analysis.
77 products
![[reference-standards] Ceftazidime hydrate](https://www.alsachim.com/15470-list_image/Ceftazidime-hydrate.jpg)
![[reference-standards] Methotrexate monohydrate](https://www.alsachim.com/14586-list_image/Methotrexate-monohydrate.jpg)
![[metabolites] 7-Hydroxymethotrexate](https://www.alsachim.com/14363-list_image/7-Hydroxymethotrexate.jpg)
7-Hydroxymethotrexate
Product Number: C293
CAS number: 5939-37-7
Synonyms: 7-OHMTX, (S)-2-(4-(((2,4-Diamino-7-hydroxypteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioic acid, 4-Amino-7-hydroxy-10-methylpteroylglutamic acid, 7-Hydroxyamethopterin
![[reference-standards] Tobramycin](https://www.alsachim.com/14815-list_image/Tobramycin.jpg)
![[reference-standards] Ceftaroline fosamil acetate salt](https://www.alsachim.com/17443-list_image/Ceftaroline-fosamil-acetate-salt.jpg)
![[reference-standards] Cytarabine](https://www.alsachim.com/15776-list_image/Cytarabine.jpg)
![[reference-standards] Pemetrexed](https://www.alsachim.com/15254-list_image/Pemetrexed.jpg)
![[reference-standards] Gemcitabine hydrochloride salt](https://www.alsachim.com/15039-list_image/Gemcitabine-hydrochloride-salt.jpg)
Gemcitabine hydrochloride salt
Product Number: C1504
CAS number: 122111-03-9
Synonyms: 2',2'-Difluoro-2'-deoxycytidine hydrochloride salt
![[reference-standards] Thiothixene](https://www.alsachim.com/19853-list_image/Thiothixene.jpg)
![[reference-standards] Cefpodoxime sodium salt](https://www.alsachim.com/19676-list_image/Cefpodoxime-sodium-salt.jpg)
![[reference-standards] Demeclocycline](https://www.alsachim.com/19632-list_image/Demeclocycline.jpg)
![[metabolites] N-desmethyldemeclocycline](https://www.alsachim.com/19630-list_image/N-desmethyldemeclocycline.jpg)
![[reference-standards] Sulfadiazine](https://www.alsachim.com/19599-list_image/Sulfadiazine.jpg)
![[reference-standards] Floxuridine](https://www.alsachim.com/19352-list_image/Floxuridine.jpg)
Floxuridine
Product Number: C6050
CAS number: 50-91-9
Synonyms: 5-FUdR, 5-Fluorodeoxyuridine, 5-Fluoro-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
![[reference-standards] Calcium levofolinate](https://www.alsachim.com/19355-list_image/Calcium-levofolinate.jpg)
Calcium levofolinate
Product Number: C6053
CAS number: 80433-71-2
Synonyms: Elvorine, Isovorin, Calcium (2S)-2-[[4-[[(6S)-2-amino-5-formyl-4-oxo-1,6,7,8-tetrahydropteridin-6-yl]methylamino]benzoyl]amino]pentanedioate
![[reference-standards] Lincomycin hydrochloride salt monohydrate](https://www.alsachim.com/19343-list_image/Lincomycin-hydrochloride-salt-monohydrate.jpg)
![[reference-standards] Tanespimycin](https://www.alsachim.com/19273-list_image/Tanespimycin.jpg)
Tanespimycin
Product Number: C5953
CAS number: 75747-14-7
Synonyms: 17-AAG, 17-(Allylamino)-17-demethoxy-geldanamycin, [(3R,5S,6R,7S,8E,10S,11S,12Z,14E)-6-Hydroxy-5,11-dimethoxy-3,7,9,15-tetramethyl-16,20,22-trioxo-21-(prop-2-enylamino)-17-azabicyclo[16.3.1]docosa-1(21),8,12,14,18-pentaen-10-yl] carbamate
![[reference-standards] Pretomanid](https://www.alsachim.com/19241-list_image/Pretomanid.jpg)
Pretomanid
Product Number: C5916
CAS number: 187235-37-6
Synonyms: PA-824, (6S)-2-Nitro-6-[[4-(trifluoromethoxy)phenyl]methoxy]-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine
![[reference-standards] Sulfamethazine](https://www.alsachim.com/18797-list_image/Sulfamethazine.jpg)