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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Paclitaxel, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Paclitaxel impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Paclitaxel-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Paclitaxel Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
10-Desacetyl Paclitaxel-d5 Stable Isotopes CS-EO-02563 Not Available Enquire
2’-O-Methyl-d3 Paclitaxel Stable Isotopes CS-EO-02564 Not Available Enquire
2'-O-Methyl-d3 Paclitaxel Stable Isotopes CS-T-96790 Not Available Enquire
3’-P-O-Benzyl Paclitaxel-d5 Stable Isotopes CS-EO-02561 Not Available Enquire
3’-P-O-Benzyl-7-{[(2,2,2,-trichloroethyl)oxy]carbonyl} Pacli... Stable Isotopes CS-EO-02562 Not Available Enquire
6alpha,3'-p-Dihydroxy Paclitaxel-d5 Stable Isotopes CS-T-95248 157230-10-9 (Unlabelled) Enquire
7-{[(2,2,2,-Trichloroethyl)oxy]carbonyl} Paclitaxel-d5 Stable Isotopes CS-EO-02565 Not Available Enquire
N-Debenzoyl-N-[(3E)-hex-3-enoyl] Paclitaxel-d7 Stable Isotopes CS-T-97660 Not Available Enquire
N-Debenzoylpaclitaxel 1-Oxopentyl Amino Ester-d9 Stable Isotopes CS-T-97640 Not Available Enquire
Paclitaxel Succinate-d4 Stable Isotopes CS-EO-02560 Not Available Enquire
Paclitaxel-d5 Stable Isotopes CS-O-06846 1129540-33-5 In Stock
Paclitaxel-d5 (Benzoyloxy) Stable Isotopes CS-O-16403 1261254-56-1 In Stock
19-Hydroxy-10-deacetyl Baccatin-III Stable Isotopes CS-O-13582 154083-99-5 Enquire
2'-Acetylpaclitaxel 13C6 Stable Isotopes CS-EK-02925 92950-40-8 unlabeled Enquire
2-Acetylpaclitaxel 13C6 Stable Isotopes CS-CX-00052 92950-40-8 Enquire
3'-p-hydroxy paclitaxel D5 Stable Isotopes CS-EO-00583 132160-32-8 (Unlabeled) Enquire
6-a-Hydroxy Paclitaxel-D5 Stable Isotopes CS-AU-00064 1315376-90-9 Enquire
6-alpha-Hydroxypaclitaxel 13C6 Stable Isotopes CS-EK-01124 153212-75-0 unlabeled Enquire
6α,3'-p-Dihydroxy Paclitaxel D5 Stable Isotopes CS-EO-00582 157230-10-9 (Unlabeled) Enquire
Paclitaxel 13C6 Stable Isotopes CS-EK-02236 379688-61-6 Enquire
Paclitaxel-13C6 Stable Isotopes CS-T-95759 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Baccatin III API CS-O-00480 27548-93-2 In Stock
Cephalomannine API CS-O-06257 71610-00-9 In Stock
Paclitaxel API CS-O-30998 33069-62-4 In Stock
DHA-Paclitaxel API CS-T-88831 199796-52-6 Enquire
Milataxel API CS-T-82491 393101-41-2 Enquire
Tricaproin API CS-T-86757 621-70-5 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4S,5R)-3-Benzoyl-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-... Impurity CS-DV-00215 949023-16-9 In Stock
10-Deacetyl Paclitaxel Impurity CS-O-07984 78432-77-6 In Stock
7-Epi 10-Desacetyl Paclitaxel Impurity CS-O-05483 78454-17-8 In Stock
Fmoc-Lys(Boc)-OH Impurity CS-U-00023 71989-26-9 In Stock
Paclitaxel 10,13-Bis Side Chain Impurity CS-O-60059 ---- Enquire
Paclitaxel EP Impurity E Impurity CS-O-31068 105454-04-4 In Stock
Paclitaxel Impurity 79 Impurity CS-T-79911 1714967-25-5 Enquire
Paclitaxel Photodegradant Impurity Impurity CS-O-57764 146139-03-9 Enquire
Paclitaxel Photodegradant Impurity Impurity CS-O-49148 Not Available Enquire
Paclitaxel Photodegradant Impurity Impurity CS-O-15611 ---- In Stock
(3R,4S)-1-Benzoyl-4-phenyl-3-[(triethylsilyl)oxy]-2-azetidin... Impurity CS-DV-00172 149249-91-2 Enquire
10-Acetoacetyl Paclitaxel Impurity CS-EO-00234 Not Available Enquire
10-Deacetyl Ethyl Paclitaxel Impurity CS-O-14790 173101-59-2 Enquire
13-O-(Triethylsilyl) Baccatin III Impurity CS-T-62318 208406-86-4 Enquire
2',7-Bis-O-(Triethylsilyl) 10-Desacetyl Paclitaxel Impurity CS-T-49441 155556-72-2 Enquire
2',7-Bis-O-{[(2,2,2,-Trichloroethyl)oxy]carbonyl Paclitaxel Impurity CS-T-49435 100449-86-3 Enquire
2-Debenzoyl Paclitaxel 2-Pentenoate Impurity CS-O-34694 Not Available Enquire
2'-O-(tert-Butyldimethylsilyl)-6a-hydroxy 7-epi-Paclitaxel Impurity CS-T-50056 165065-08-7 Enquire
3H-4,7a-Methanocyclohept[3,3a]indeno[5,4-b]oxete Benzeneprop... Impurity CS-T-57591 146139-03-9 Enquire
6a,3'-p-Dihydroxy Paclitaxel Impurity CS-T-53249 157230-10-9 Enquire
6a-Hydroxy Paclitaxel Impurity CS-T-56287 153212-75-0 Enquire
6-Oxo Docetaxel Impurity CS-T-84673 1412898-68-0 Enquire
7-epi-10-Oxo-10-deacetyl Baccatin III Impurity CS-T-60009 151636-94-1 Enquire
7-O-(Triethylsilyl) Baccatin III Impurity CS-T-62317 115437-21-3 Enquire
7-O-(Triethylsilyl) Paclitaxel Impurity CS-T-62322 148930-55-6 Enquire
7-O-(Triethylsilyl)-2’-O-tert-butyl(dimethyl)silyl 2-Debenzo... Impurity CS-T-86676 1055033-93-6 Enquire
7-O-(Triethylsilyl)-2’-O-tert-butyl(dimethyl)silyl-2-debenzo... Impurity CS-T-86289 162459-94-1 Enquire
7-O-(Triethylsilyl)-2'-O-tert-butyl(dimethyl)silyl Paclitaxe... Impurity CS-T-62316 156413-61-5 Enquire
7-O-(Trifluoroacetyl) Baccatin III Impurity CS-T-62338 158811-19-9 Enquire
Desbenzoyl Docetaxel Impurity CS-T-52111 160972-48-5 Enquire
Desmethyl Ethyldihydrocephalomannine Impurity CS-T-53010 514801-83-3 Enquire
Iso Cephalomannine Impurity CS-T-56794 173101-54-7 Enquire
N-debenzoyl-N-propanoyl-10-deacetyl Paclitaxel Impurity CS-O-13584 173101-47-8 Enquire
N-Desbenzoyl-N-tert-butoxycarbonyl-N,O-isopropylidene-3’-p-O... Impurity CS-T-73207 1794640-74-6 Enquire
N-DesBoc Docetaxel Impurity CS-T-73745 133524-69-3 Enquire
Paclitaxel C Impurity CS-T-60114 153415-45-3 Enquire
Paclitaxel EP Impurity I Impurity CS-P-08274 2157462-42-3 Enquire
Paclitaxel Impurity 2 Impurity CS-EO-01689 489459-83-8 Enquire
Paclitaxel N-Butyl Analog Impurity CS-P-05704 Not Available Enquire
Paclitaxel Oxetane Ring-Opened 3-Acetyl 4-Benzoyl Impurity Impurity CS-T-60115 932042-85-8 Enquire
Taxol D Impurity CS-T-87112 153415-46-4 Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
7-epi-Paclitaxel Secondary Standards CS-SS-26464-50MG 105454-04-4 Enquire
7-O-Acetylpaclitaxel Secondary Standards CS-SS-26461-50MG 92950-39-5 Enquire
Paclitaxel Secondary Standards CS-SS-24751-200MG 33069-62-4 Enquire
Paclitaxel impurity K Secondary Standards CS-SS-26465-50MG 148930-55-6 Enquire
Paclitaxel Related Compound A Secondary Standards CS-SS-25020-50MG 71610-00-9 Enquire
Paclitaxel Related Compound B Secondary Standards CS-SS-25021-50MG 78454-17-8 Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Paclitaxel (Taxol, PCXL), 99% Biochemicals CS-SR-00375 33069-62-4 Enquire


Chiral

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4S,5R)-2-(4-methoxy-phenyl)-3-N-BOC-4-phenyl-3, 5-oxazolidi... Chiral CS-DV-00214 196404-55-4 In Stock


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R,3S)-N-Benzoyl-3-phenyl Isoserine Ethyl Ester Therapeutic CS-T-48736 153433-80-8 In Stock
Paclitaxel EP Impurity R Therapeutic CS-T-86427 158948-96-0 Enquire


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Paclitaxel-d5 (Benzoyloxy)-AR Grade Analytical Standard CS-O-16403-10MG 1261254-56-1 Enquire
Paclitaxel-d5 (Benzoyloxy)-AR Grade-10 ppm/ACN Analytical Standard CS-O-16403-1ML 1261254-56-1 Enquire