Aller au contenu
Shenzhen Oriental PharmaceuticalShenzhen Oriental PharmaceuticalOrientalAPIs spécialisés depuis 1995
Nouvelle ligne de capacité · Étalons de référence

Étalons de référence d'impuretés & étalons certifiés de nitrosamines

Impuretés pharmaceutiques de haute pureté et étalons de référence de N-nitrosamines à l'échelle du milligramme — synthétisés par l'équipe qui fabrique les APIs parents. CoA avec données RMN, CLHP, SM et Karl Fischer.

mg scaleCoA: NMR · HPLC · MS · KF Même laboratoire, même rigueur GMP que pour nos APIs.

Ce que nous préparons

Quatre familles, toutes fabriquées en interne à l'échelle du milligramme. Liste des disponibilités et devis par e-mail.

Nitrosamine impurity standards (NDMA class)

Forte demande

N-nitrosamine impurities reshaped global drug testing since 2019. Every batch released for a susceptible API now needs LC-MS/MS or GC-MS testing against certified reference materials — and demand for these mg-scale standards permanently outstrips supply. We manufacture nitrosamine standards and their labelled isotopic internal standards against FDA/TGA acceptable-intake frameworks.

Demander les disponibilités

Pharmacopeial impurities & related substances

Forte demande

USP and EP monographs list named related substances (e.g. Phenylephrine Impurities 1–7) for each monograph API. Registrants must resolve and quantify them; labs need the compounds themselves. Our synthesis team prepares pharmacopeial and non-compendial impurities for the sympathomimetic, antihistamine and CNS APIs we manufacture — with CoA (NMR, HPLC, MS, water content by KF). Send us the impurity list from the monograph you are working to and we will confirm what we can supply.

Demander les disponibilités

Custom & work standard qualification

Off-catalogue impurities — forced-degradation products, metabolites, process-related unknowns flagged in your CoA — are quoted as custom synthesis projects (mg scale). For in-house work standards we support assignment/qualification packages aligned with USP <11> principles.

Demander les disponibilités

Deuterated & 13C internal standards

Isotopically labelled analogues (e.g. d6-NDMA, 13C2-NDMA) are the quantitation backbone of LC-MS/MS nitrosamine methods — and chronically scarce. We supply labelled internal standards with full isotopic abundance data on the CoA.

Demander les disponibilités

Points forts du catalogue d'étalons de nitrosamines

N-nitrosamines monoisomères non biaisées, à pureté assignée — les composés contre lesquels tout API sensible doit désormais être contrôlé.

CodeCompound CASFDA/TGA AI
NDMAN-Nitrosodimethylamine62-75-996.0 ng/day
NDEAN-Nitrosodiethylamine55-18-526.5 ng/day
NDPAN-Nitrosodipropylamine621-64-726.5 ng/day
NDBAN-Nitrosodi-n-butylamine924-16-326.5 ng/day
NMORN-Nitrosomorpholine59-89-2127 ng/day
NPIPN-Nitrosopiperidine100-75-41300 ng/day
NPYRN-Nitrosopyrrolidine930-55-21700 ng/day
NDIPAN-Nitrosodiisopropylamine601-77-426.5 ng/day
NEIPAN-Nitrosoethylisopropylamine16339-04-126.5 ng/day
NMBAN-Nitroso-N-methyl-4-aminobutyric acid61445-55-496.0 ng/day
NMPAN-Nitroso-N-methylaniline614-00-626.5 ng/day
NBEAN-Nitroso-N-ethylbenzylamine20689-96-718.1 ng/day
NDELAN-Nitrosodiethanolamine1116-54-71900 ng/day
MeNP1-Methyl-4-nitrosopiperazine16339-07-426.5 ng/day
NTHPN-Nitroso-1,2,3,6-tetrahydropyridine55556-92-837 ng/day
d6-NDMANDMA-d6 (internal standard)88088-25-9—
d6-NDEANDEA-d12 (internal standard)113347-50-3—

Acceptable-intake (AI) values shown are taken from the FDA CDER and TGA published tables (checked October 2026) for orientation only; regulators update them — always work to the current official list.

Demander les disponibilités

Standards d'impuretés par API parent

Les dénominations génériques chinoises se recoupent fortement entre sels et esters ; nous identifions donc chaque composé par son numéro CAS — la seule clé fiable — et précisons systématiquement à quel API parent appartient une impureté. Consultez la liste ci-dessous ; confirmez le stock, le conditionnement et le prix par e-mail.

Le CAS Registry Number™ est notre identifiant principal ; les dénominations ne servent qu'à l'orientation.

Phenylephrine Hydrochloride
CAS 61-76-7
  • EP Impurity A(1R)-2-amino-1-(3-hydroxyphenyl)ethanol (norphenylephrine / norfenefrine)636-87-3
  • EP Impurity C = USP Related Compound C1-(3-hydroxyphenyl)-2-(methylamino)ethanone (phenylephrone), hydrochloride94240-17-2
  • EP Impurity D = USP Related Compound D(1R)-2-(benzylmethylamino)-1-(3-hydroxyphenyl)ethanol (benzylphenylephrine)1367567-95-0
  • EP Impurity E = USP Related Compound E2-(benzylmethylamino)-1-(3-hydroxyphenyl)ethanone (benzylphenylephrone), hydrochloride71786-67-9
  • EP Impurity A (salt form)3-(2-amino-1-hydroxyethyl)phenol hydrochloride (norphenylephrine hydrochloride)4779-94-6
  • USP Related Compound F(R)-2-methyl-1,2,3,4-tetrahydroisoquinoline-4,8-diol (hydrochloride monohydrate)1007885-60-0
  • USP Related Compound G(R)-N-(2-hydroxy-2-(3-hydroxyphenyl)ethyl)-N-methylglycine (phenylephrine carboxy analog)1094089-46-9
  • USP degradant: 3-hydroxybenzaldehyde3-hydroxybenzaldehyde100-83-4
  • USP degradant: isoquinoline 4,6-diol analog2-methyl-1,2,3,4-tetrahydroisoquinoline-4,6-diol23824-24-0
  • USP degradant: isoquinolinone analog1-(3-hydroxybenzoyl)-2-methylisoquinolin-6(2H)-oneCAS en attente de vérification — confirmé sur le CoA
  • N-Nitroso phenylephrineN-[(2R)-2-hydroxy-2-(3-hydroxyphenyl)ethyl]-N-methyl-nitrous amide (N-nitrosophenylephrine)78658-64-7
Phenylephrine Bitartrate
CAS 17162-39-9
  • USP Related Compound C (same as Phenylephrine)1-(3-hydroxyphenyl)-2-(methylamino)ethan-1-one (phenylephrone)52093-42-2
  • USP Related Compound D (same as Phenylephrine)(R)-3-{2-[benzyl(methyl)amino]-1-hydroxyethyl}phenol1367567-95-0
  • USP Related Compound E (same as Phenylephrine)2-[benzyl(methyl)amino]-1-(3-hydroxyphenyl)ethan-1-one hydrochloride71786-67-9
  • USP: Norphenylephrine (same as Phenylephrine EP Impurity A)3-(2-amino-1-hydroxyethyl)phenol hydrochloride4779-94-6
Phenylephrine base
CAS 59-42-7
  • EP Impurity A (same as Phenylephrine HCl)(1R)-2-amino-1-(3-hydroxyphenyl)ethanol (norphenylephrine)636-87-3
  • EP Impurity C (same as Phenylephrine HCl)1-(3-hydroxyphenyl)-2-(methylamino)ethanone (phenylephrone)52093-42-2
  • EP Impurity D (same as Phenylephrine HCl)(1R)-2-(benzylmethylamino)-1-(3-hydroxyphenyl)ethanol (benzylphenylephrine)1367567-95-0
  • EP Impurity E (same as Phenylephrine HCl)2-(benzylmethylamino)-1-(3-hydroxyphenyl)ethanone (benzylphenylephrone)56917-44-3
Doxylamine succinate
CAS 562-10-7
  • EP Impurity CN,N-dimethyl-2-[(1RS)-1-phenyl-1-(pyridin-2-yl)methoxy]ethan-1-amine (N-desmethyldoxylamine)1442-21-3
  • USP: 2-Benzoylpyridine = EP Impurity Dphenyl(pyridin-2-yl)methanone (2-benzoylpyridine)91-02-1
  • USP: Carbinoxamine Related Compound C (= N-desmethyldoxylamine) = EP Impurity CN,N-dimethyl-2-[phenyl(pyridin-2-yl)methoxy]ethan-1-amine (desmethyl doxylamine)1221-70-1
  • USP: Doxylamine alcohol = EP Impurity B1-phenyl-1-(pyridin-2-yl)ethan-1-ol (α-methyl-α-phenyl-2-pyridinemethanol)19490-92-7
  • USP: Doxylamine dioxide (N,N'-dioxide)N,N-dimethyl-2-(1-(1-oxidopyridin-2-yl)-1-phenylethoxy)ethan-1-amine oxide105176-70-3
  • USP: Doxylamine ethylamine N-oxideN,N-dimethyl-2-[1-phenyl-1-(pyridin-2-yl)ethoxy]ethan-1-amine oxide97143-65-2
  • USP: Doxylamine pyridine-4-yl isomer = EP Impurity AN,N-dimethyl-2-[1-phenyl-1-(pyridin-4-yl)ethoxy]ethan-1-amine873407-01-3
  • USP: Doxylamine pyridinyl N-oxide2-[1-(2-(dimethylamino)ethoxy)-1-phenylethyl]pyridine 1-oxide99430-77-0
  • N-Nitroso N,C-didesmethyl doxylamineN-nitroso-N,C-didesmethyl doxylamineCAS en attente de vérification — confirmé sur le CoA
  • N-Nitroso N-desmethyl doxylamineN-nitroso-N-desmethyl doxylamineCAS en attente de vérification — confirmé sur le CoA
Etilefrine HCL
CAS 943-17-9
  • EP/BP Impurity A2-(ethylamino)-1-(3-hydroxyphenyl)ethanone (etilefrone)22510-04-9
  • EP/BP Impurity B(1RS)-1-(3-hydroxyphenyl)-2-(methylamino)ethanol (phenylephrine, racemic)1477-63-0
  • EP/BP Impurity C(1RS)-2-amino-1-(3-hydroxyphenyl)ethanol (norfenefrine / norphenylephrine)4779-94-6
  • EP/BP Impurity D2-(benzylethylamino)-1-(3-hydroxyphenyl)ethanone (benzyletilefrone)42146-10-1
  • EP/BP Impurity E1-(3-hydroxyphenyl)ethanone (3-hydroxyacetophenone)121-71-1
  • EP/BP Impurity F (other detectable)N-benzylethanamine (benzylethylamine)14321-27-8
  • N-Nitroso etilefrineN-nitroso etilefrine78658-62-5
Norepinephrine Bitartrate
CAS 108341-18-0
  • EP Impurity A (other detectable)adrenaline (epinephrine)51-43-4
  • EP Impurity C (other detectable)dopamineCAS en attente de vérification — confirmé sur le CoA
  • EP Impurity D4-[(1R)-2-amino-1-methoxyethyl]benzene-1,2-diol (noradrenaline methyl ether)CAS en attente de vérification — confirmé sur le CoA
  • EP Impurity E2-chloro-1-(3,4-dihydroxyphenyl)ethanone (α-chloro-3,4-dihydroxyacetophenone)99-40-1
  • EP Impurity FN-benzyl-1-phenylmethanamine (dibenzylamine)CAS en attente de vérification — confirmé sur le CoA
  • EP Impurity G (other detectable)2-(dibenzylamino)-1-(3,4-dihydroxyphenyl)ethanoneCAS en attente de vérification — confirmé sur le CoA
  • USP: Arterenone (limit test) ≡ EP Impurity B2-amino-1-(3,4-dihydroxyphenyl)ethanone (noradrenalone / arterenone)499-61-6
Epinephrine (Adrenaline)
CAS 51-43-4
  • EP/BP Impurity B4-[(1R)-2-amino-1-hydroxyethyl]benzene-1,2-diol (noradrenaline)51-41-2
  • EP/BP Impurity C = USP Adrenalone1-(3,4-dihydroxyphenyl)-2-(methylamino)ethan-1-one (adrenalone)62-13-5
  • EP/BP Impurity D = USP N-Benzyl Epinephrine4-[(1R)-2-[benzyl(methyl)amino]-1-hydroxyethyl]benzene-1,2-diol (N-benzyl epinephrine)1095714-91-2
  • EP/BP Impurity E = USP N-Benzyl Adrenalone2-[benzyl(methyl)amino]-1-(3,4-dihydroxyphenyl)ethan-1-one (N-benzyl adrenalone)36467-25-1
  • EP/BP Impurity F = USP Epinephrine sulfonate(1R)-1-(3,4-dihydroxyphenyl)-2-(methylamino)ethane-1-sulfonic acid26405-77-6
  • USP: (S)-Epinephrine (enantiomeric purity)(S)-epinephrine (dexamethasone-side enantiomer)150-05-0
  • USP: Epinephrine methoxy analogmethoxy adrenaline (O-methyl epinephrine) hydrochloride74571-90-7
  • USP: Epininedeoxyepinephrine (epinine; 4-(2-(methylamino)ethyl)phenol) hydrochloride62-32-8
  • USP: Oxedrine (deoxyepinephrine)4-[1-hydroxy-2-(methylamino)ethyl]phenol (oxedrine / deoxyepinephrine)94-07-5
  • N-Nitroso epinephrineN-nitroso epinephrine3038740-97-2
  • Adrenochromeadrenochrome (3-hydroxy-1-methyl-2,3-dihydro-1H-indole-5,6-dione)54-06-8
  • USP: 4-chlorocatechol4-chlorobenzene-1,2-diol (4-chlorocatechol)2138-22-9
Epinephrine Bitartrate
CAS 51-42-3
  • EP Adrenaline Tartrate Impurity B–F (same as Adrenaline)noradrenaline / adrenalone / N-benzyl adrenaline / N-benzyl adrenalone / adrenaline sulfonic acidCAS en attente de vérification — confirmé sur le CoA
  • USP: Adrenalone1-(3,4-dihydroxyphenyl)-2-(methylamino)ethan-1-one (adrenalone) hydrochloride62-13-5
  • USP: Norepinephrine(R)-4-(2-amino-1-hydroxyethyl)benzene-1,2-diol (norepinephrine)51-41-2
  • USP: Unidentified impurity 1unidentified impurity peak 1CAS en attente de vérification — confirmé sur le CoA
Isoproterenol HCL
CAS 51-30-9
  • USP Related Compound A (= isoproterenone) ≡ EP Impurity A (= isoproterenone HCl)1-(3,4-dihydroxyphenyl)-2-[(1-methylethyl)amino]ethanone (isoproterenone), hydrochloride16899-81-3
Isoproterenol Sulfate
CAS 299-95-6
  • EP Impurity A (same as Isoproterenol HCl)1-(3,4-dihydroxyphenyl)-2-[(1-methylethyl)amino]ethanone (isoproterenone)16899-81-3
  • USP: Metaproterenol / orciprenalinemetaproterenol (orciprenaline; 5-[1-hydroxy-2-(isopropylamino)ethyl]benzene-1,3-diol) sulfateCAS en attente de vérification — confirmé sur le CoA
Synephrine Tartrate
CAS 16589-24-5
  • octopamineoctopamine (norsynephrine)770-05-8
  • phenylephrinephenylephrine59-42-7
  • tyraminetyramineCAS en attente de vérification — confirmé sur le CoA
Synephrine HCL
CAS 5985-28-4
  • synephrine enantiomers ((R)/(S))synephrine enantiomers ((R)/(S))CAS en attente de vérification — confirmé sur le CoA
  • octopamineoctopamine (±)-4-(2-amino-1-hydroxyethyl)phenol770-05-8
  • phenylephrinephenylephrine / phenylephrine hydrochloride61-76-7
Dorzolamide HCL
CAS 130693-82-2
  • EP Impurity B (4S,6R)(4S,6R)-4-(ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide139066-77-6
  • EP Impurity B, (4R,6S)(4R,6S)-4-(ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide149249-72-9
  • EP Impurity Cdorzolamide cyclic boronate ester adduct (C10H17BN2O6S3)CAS en attente de vérification — confirmé sur le CoA
  • USP Related Compound A = EP Impurity A (hydrochloride)(4R,6R)-4-(ethylamino)-5,6-dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide-7,7-dioxide monohydrochloride (ent-dorzolamide HCl)122028-36-8
  • USP Related Compound B = EP Impurity B (hydrochloride)(4RS,6SR)-4-(ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride120279-37-0
  • USP Related Compound D = EP Impurity D (hydrochloride)(4S,6S)-4-amino-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride (N-deethyldorzolamide HCl)164455-27-0
  • Dorzolamidedorzolamide maleic ester ((n-1) adduct), C14H20N2O8S3 dimer (CAS 3127911-34-3)3127911-34-3

Comment vérifier un composé auprès de nous

Envoyez-nous le numéro CAS (et, si vous l'avez, la lettre d'impureté de la monographie). Nous confirmons l'identité dans notre base de données d'échantillons de référence avant toute cotation : un CAS, un composé, aucune ambiguïté de dénomination.

Demander les disponibilités

Pourquoi les étalons d'impuretés fournis par un fabricant sont essentiels

Because we are the manufacturer of the parent APIs — phenylephrine, epinephrine, isoproterenol, doxylamine and their relatives — we hold the synthetic knowledge, the reference batches and the degradation profiles of their impurities. That vertical integration is why our impurity standards match the material you actually test.

Envoyez-nous la liste des impuretés figurant dans votre monographie ou votre CoA.

Nous confirmons ce que nous pouvons fournir, à quelle pureté, en quel format — délai de livraison inclus, en une seule réponse.

Demander un devis