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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Rak, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Rak 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 Rak-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.

Rak Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3',5'-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]... Stable Isotopes CS-T-102772 85335-72-4(Unlabelled) Enquire
3',5'-O-[Tetrakis(1-methylethyl)-1,3-disiloxanediyl]guanosin... Stable Isotopes CS-T-102265 Not Available Enquire
N-​Methoxy-​N-​methyl-​2,​3,​4,​6-​tetrakis-​O-​(phenylmethy... Stable Isotopes CS-T-96495 Not Available Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
oxybis(propane-3,1,2-triyl) tetrakis(4-phenylbutanoate) Impurity CS-O-53591 ---- Enquire
[1,1-Biphenyl]-4,4-diamine, N4,N4,N4,N4-tetrakis([1,1-biphen... Impurity CS-DV-00447 164724-35-0 Enquire
{[(Phosphonomethyl)imino]bis[hexamethylenenitrilobis(methyle... Impurity CS-DV-00476 34690-00-1 Enquire
2,2,7,7-Tetrakis-(N,N-di-4-methoxyphenylamino)-9,9-spirobifl... Impurity CS-T-61917 207739-72-8 Enquire
3',5'-O-[Tetrakis(1-methylethyl)-1,3-disiloxanediyl]guanosin... Impurity CS-T-61919 88183-82-8 Enquire
5,5’,6,6’-Tetrakis(methoxymethoxy)-indigotin Impurity CS-T-86226 858230-17-8 Enquire
6,6',7,7'-tetrakis(2-methoxyethoxy)-4H-[3,4'-biquinazolin]-4... Impurity CS-O-37086 Not Available Enquire
Benzene, 1,1,1,1- (oxydimethylidyne) tetrakis- Impurity CS-CB-00048 574-42-5 Enquire
Ethylenediamine-N,N,N',N'-tetraacetic Acid Tetrakis[N-(2-Ami... Impurity CS-T-54455 1246816-47-6 Enquire
Manganese Tetrakis(2,6-dichlorophenyl)porphyrin Chloride Impurity CS-T-57403 91463-17-1 Enquire
O6-Benzyl-N2,3-etheno-2'-deoxy-3',5'-O-[tetrakis(isopropyl)-... Impurity CS-T-48882 148437-94-9 Enquire
Tetrakis(2,4-di-tert-butylphenyl)-1,1-biphenyl-4,4-diylbisph... Impurity CS-DV-03766 38613-77-3 Enquire
Tetrakis(2-chloroethyl)phosphorodiamidic Chloride Impurity CS-T-61916 60106-92-5 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N3,N3,N6,N6-tetrakis(4-methoxyphenyl)-9H-carbazole-3,6-diami... Intermediate CS-O-47682 1630723-98-6 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Sodium Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate Fine Chemicals CS-DC-00261 79060-88-1 In Stock
Tetrakis(triphenylphosphine)nickel Fine Chemicals CS-O-13890 15133-82-1 In Stock
1,1',1'',1'''-(1,4,8,11-tetraazacyclotetradecane-1,4,8,11-te... Fine Chemicals CS-O-33994 201610-16-4 Enquire
2,3,4,5-Tetrakis(3',4'-dihydroxylphenyl)thiophene Fine Chemicals CS-O-33724 1388814-41-2 Enquire
2,3,4,5-Tetrakis(3',4'-dihydroxylphenyl)thiophene Fine Chemicals CS-EO-00138 1388814-41-2 Enquire
Tetrakis(dimethylamino)titanium Fine Chemicals CS-DA-00172 3275-24-9 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3,4,5-Tetrakis-O-(phenylmethyl)-L-iditol Building Blocks CS-T-87351 78136-16-0 Enquire
Tetrakis(1-methylethyl)-2,10-dimethyl-3,3,9,9-4,8-dioxa-3,9-... Building Blocks CS-T-43907 98264-26-7 Enquire
Tetrakis(neopentyl)titanium Building Blocks CS-O-36273 36945-13-8 Enquire
Tetrakis(trimethylsiloxy)silane Building Blocks CS-DA-00518 3555-47-3 Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Perakine Pesticide Standards CS-BT-00495 4382-56-3 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-N-(4-aminophenethyl)-N-(2-hydroxy-2-phenylethyl)nitrous ... Nitrosamine CS-O-54139 - Enquire