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

Arginine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
[1-13C]-L-Arginine Stable Isotopes CS-EK-02035 81201-96-9 Enquire
[3-13C]-L-Arginine Stable Isotopes CS-EK-02656 74-79-3 unlabeled Enquire
Arginine D2 Stable Isotopes CS-CX-00132 948897-71-0 Enquire
Arginine Vasopressin-d5 Stable Isotopes CS-T-98811 1356383-11-3 Enquire
Dimethyl arginine-d6 Stable Isotopes CS-Y-00049 850208-77-4 Enquire
Etrasimod arginine-d9 Stable Isotopes CS-O-58816 1206123-97-8(Unlabeled) Enquire
L-Arginine 13C Stable Isotopes CS-CX-00086 130383-76-5 Enquire
L-ARGININE Hydrochloride α-15N Stable Isotopes CS-R-00179 1353853-30-1 Enquire
L-ARGININE Hydrochloride 13C Stable Isotopes CS-R-00172 94740-43-9 Enquire
L-ARGININE Hydrochloride 13C2 Stable Isotopes CS-R-00171 201740-75-2 Enquire
L-Arginine Hydrochloride 13C6 Stable Isotopes CS-R-00056 201740-91-2 Enquire
L-ARGININE Hydrochloride 15N4, Stable Isotopes CS-R-00177 204633-95-4 Enquire
L-Arginine-[13C6] Hydrochloride (Solution) Stable Isotopes CS-I-00635 201740-91-2 Enquire
L-Arginine-13C, D4 Stable Isotopes CS-CH-00049 74-79-3(Unlabeled) Enquire
L-Arginine-13C,d4 Dihydrochloride Stable Isotopes CS-T-95041 Not Available Enquire
L-Arginine-5-13C,4,4,5,5-d4 Stable Isotopes CS-BX-00760 Not Available Enquire
L-Arginine-d7 Hydrochloride Stable Isotopes CS-O-06412 204244-77-9 In Stock
L-Homoarginine-d4 Dihydrochloride Stable Isotopes CS-T-79663 1332075-41-8 Enquire
N,N-dimethylarginine-D7 Stable Isotopes CS-O-51471 65005-57-4(Unlabelled) Enquire
NG,NG’-Dimethyl-L-arginine-d6 Stable Isotopes CS-T-90422 1331888-08-4 Enquire
NG,NG-Dimethylarginine-d6 Dihydrochloride Stable Isotopes CS-T-95379 1313730-20-9 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Diethylhomoarginine API Standards CS-O-16751 Not Available Enquire
DL-Arginine API Standards CS-DK-00007 7200-25-1 Enquire
Etrasimod arginine API Standards CS-O-58810 1206123-97-8 Enquire
L-Citrulline API Standards CS-T-13040 372-75-8 In Stock
Perindopril arginine API Standards CS-T-60284 612548-45-5 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
8-Arginine Vasopressin Trisulphide Impurities CS-ED-01422 189241-28-9 Enquire
Arginine-5-amino-2-nitrobenzoic Acid Isopropylamide Dihydroc... Impurities CS-AD-00700 1272755-10-8 Enquire
Boc-L-Arg-OH.HCl.H2O Impurities CS-ED-41944 114622-81-0 Enquire
Carbobenzoxy-valyl-glycyl-arginine-p-nitroanilide acetate Impurities CS-ED-02447 86170-43-6 Enquire
Cephradine L-Arginine Impurities CS-O-01087 85760-50-5 In Stock
Cyclo LArginine Impurities CS-P-07199 28958-90-9 Enquire
Glutaminyl-Methionyl-Glutamyl-Glutamyl-Glutamyl-Alanyl-Valyl... Impurities CS-O-13851 868249-03-0 Enquire
Homoarginine Impurity 1 Impurities CS-P-07200 98500-82-4 Enquire
Ibuprofen Arginine Impurities CS-DV-00383 57469-82-6 Enquire
Lauroyl arginine Impurities CS-O-53711 42492-22-8 Enquire
Lauroyl Arginine Hydrochloride Impurities CS-T-30923 181434-85-5 Enquire
L-Diethylhomoarginine hydrochloride Impurities CS-O-16827 Not Available In Stock
L-Homoarginine Hydrochloride Impurities CS-T-78271 1483-01-8 Enquire
L-Norarginine Impurities CS-T-37449 14191-90-3 Enquire
Na-Boc-N-nitro-D-arginine Impurities CS-T-07646 50913-12-7 Enquire
Nitroso L-Arginine Impurities CS-O-46004 2492451-27-9 Enquire
N-Methyl L-Norarginine Impurities CS-T-33161 186308-99-6 Enquire
N-Psi-2,2,4,6,7-pentamethyldihydrobenzofuran-5-ylsulfonyl-D-... Impurities CS-U-00003 200116-81-0 Enquire
Nα-Boc-L-arginine Hydrochloride Impurities CS-T-68194 35897-34-8 Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Arginine aspartate (Y0000304) EP Standards CS-EG-00109 7675-83-4 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-NITRO-L-Arginine Intermediates CS-O-43819 Not Available Enquire
Amino acid hydroxamates l-arginine hydroxamate hydrochloride Intermediates CS-ED-05878 35832-00-9 Enquire
Arginine Vasopressin Diacetate Intermediates CS-T-48335 75499-44-4 Enquire
Benzoyl-DL-arginine-7-amido-4-methylcoumarin hydrochloride Intermediates CS-ED-22760 102601-21-8 Enquire
Benzoyl-L-arginine beta-naphthylamide hydrochloride Intermediates CS-ED-13382 198555-19-0 Enquire
Boc-l-beta-homoarginine(tos) Intermediates CS-AC-04506 136271-81-3 Enquire
D-Arginine Intermediates CS-M-29412 157-06-2 Enquire
D-Arginine 1,1-Dimethylethyl Ester Intermediates CS-ED-11575 130752-28-2 Enquire
D-Arginine Hydrochloride Intermediates CS-CU-00006 627-75-8 Enquire
DL-a-(Difluoromethyl)arginine Intermediates CS-T-18377 69955-43-7 Enquire
DL-Arginine hydrochloride monohydrate Intermediates CS-ED-07805 332360-01-7 Enquire
D-NG-Nitroarginine Methyl Ester Hydrochloride Intermediates CS-T-89632 50912-92-0 Enquire
Fructose-Arginine Intermediates CS-T-55104 25020-14-8 In Stock
Homoarginine Intermediates CS-T-79535 156-86-5 Enquire
L-Arginine 7-amido-4-methylcoumarin dihydrochloride Intermediates CS-AC-03563 113712-08-6 Enquire
L-Arginine acetylsalicylate Intermediates CS-ED-11705 37466-21-0 Enquire
L-Arginine ethyl ester DiHCl Intermediates CS-AC-04992 36589-29-4 Enquire
L-Arginine L-aspartate Intermediates CS-AC-02248 7675-83-4 In Stock
L-Arginine L-glutamate Intermediates CS-AC-02209 4320-30-3 Enquire
L-Arginine Methyl Ester Dihydrochloride Intermediates CS-O-10890 26340-89-6 In Stock
L-Arginine, L-alanyl- Intermediates CS-ED-02626 16709-12-9 Enquire
L-Arginine-L-pyroglutamate Intermediates CS-AC-05046 56265-06-6 Enquire
L-Arginyl-L-arginine 7-amido-4-methylcoumarin trihydrochlori... Intermediates CS-ED-11578 201847-69-0 Enquire
N-α-benzyloxycarbonyl-l-arginine 7-amido-4-methylcoumar... Intermediates CS-AD-00861 70375-22-3 Enquire
N-α-t-butyloxycarbonyl-l-arginine P-nitroanilide Hydroc... Intermediates CS-AD-00907 99306-64-6 Enquire
N2-Benzoyl-L-arginine ethyl ester hydrochloride Intermediates CS-CE-00285 2645-08-1 Enquire
Na-benzoyl-l-arginine-7-amido-4-methylcoumarin Hydrochloride Intermediates CS-AD-00902 913-04-2 Enquire
Na-Fmoc-D-arginine Hydrochloride Intermediates CS-T-24544 214852-44-5 Enquire
Na-Fmoc-L-arginine Intermediates CS-T-24545 91000-69-0 Enquire
N-alpha-(t-Butoxycarbonyl)-L-arginine thiobenzyl ester hydro... Intermediates CS-ED-13490 79864-22-5 Enquire
Nalpha-acetyl-DL-arginine dihydrate Intermediates CS-ED-36967 114005-77-5 Enquire
N-Alpha-benzoyl-L-arginine Intermediates CS-AC-02800 154-92-7 Enquire
N-alpha-Carbobenzoxy-N-omega-(4-methoxy-2,3,6-trimethylbenze... Intermediates CS-ED-11621 115608-60-1 Enquire
N-Benzoyl-DL-arginine-4-nitroanilide hydrochloride Intermediates CS-CE-00675 911-77-3 Enquire
N-CBZ-Glycyl-glycyl-L-arginine 7-Amido-4-methylcoumarin Hydr... Intermediates CS-T-69991 102601-58-1 Enquire
NG,NG-Dimethylarginine Dihydrochloride Intermediates CS-T-19795 220805-22-1 Enquire
NG-Amino-L-arginine hydrochloride (L-NAA) Intermediates CS-O-41988 1031799-40-2 Enquire
Nitroarginine Methyl Ester Hydrochloride Intermediates CS-T-83722 51298-62-5 Enquire
Nα-Carbobenzyloxy-Nω-bis-p-nitrobenzylphospho-L-arginine Ben... Intermediates CS-T-69090 105975-49-3 Enquire
Nω-(2,2,5,7,8-Pentamethylchroman-6-sulfonyl)-D-arginine Intermediates CS-T-84699 191869-60-0 Enquire
Nω-(2,2,5,7,8-Pentamethylchroman-6-sulfonyl)-L-arginine Intermediates CS-T-84763 112160-37-9 Enquire
Phospho-L-arginine Trisodium Salt Intermediates CS-T-83954 1189-11-3 Enquire
Tilarginine hydrochloride Intermediates CS-ED-35866 156706-47-7 Enquire
Z-L-Arginine Intermediates CS-T-04134 1234-35-1 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
D-Homoarginine Hemisulfate Fine Chemicals CS-T-78364 32733-73-6 Enquire
L-Arginine Fine Chemicals CS-O-30958 74-79-3 In Stock
L-arginine Mono Hydrochloride Fine Chemicals CS-O-30965 1119-34-2 In Stock
L-Ornithine Fine Chemicals CS-ZE-05916 70-26-8 Enquire
Nα-Benzoyl-L-arginine ethyl ester hydrochloride Fine Chemicals CS-BX-00927 2645-08-1 In Stock


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"NG,NG’-Dimethy-L-arginine Di(p-hydroxyazobenzene-p’-sulfona... Building Blocks CS-T-90845 102783-24-4 Enquire
DL-Arginine Hydrochloride Building Blocks CS-DE-00079 32042-43-6 Enquire
Fmoc-L-Homoarginine Hydrochloride Salt Building Blocks CS-T-77698 208174-14-5 Enquire
Glutaryl-glycyl-L-arginine 7-Amido-4-methylcoumarin Hydrochl... Building Blocks CS-T-79520 103213-40-7 Enquire
Glycyl-L-arginine Building Blocks CS-O-53188 18635-55-7 Enquire
L-Lysine Building Blocks CS-M-57561 56-87-1 In Stock
N-α-benzyloxycarbonyl-l-arginine-p-nitroanilide Hydroch... Building Blocks CS-AD-00818 59188-53-3 Enquire
N-4-Tosyl-L-arginine Methyl Ester Hydrochloride Building Blocks CS-T-86695 1784-03-8 In Stock
Na-Cbz-D-arginine Building Blocks CS-T-10670 6382-93-0 Enquire
N-Acetyl-L-arginine Amide Hydrochloride Building Blocks CS-T-64269 88530-28-3 Enquire
N-Acetyl-L-arginine Methyl Ester Hydrochloride Building Blocks CS-T-64530 1784-05-0 Enquire
N-Boc-N-nitro-L-arginine Building Blocks CS-G-00045 2188-18-3 Enquire
NG-Monomethyl-L-arginine Acetate Building Blocks CS-T-35960 53308-83-1 Enquire
N-Hydroxy-nor-L-Arginine Dihydrochloride Building Blocks CS-T-28105 291758-32-2 Enquire
Nω-Hydroxy-L-arginine Monoacetate Building Blocks CS-T-78551 53598-01-9 Enquire
Nω-Propyl-L-Arginine Building Blocks CS-T-85625 137361-05-8 Enquire
Tri-N-Boc-L-Norarginine Building Blocks CS-T-87138 869094-29-1 Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Nα-Benzoyl-L-isoleucyl-L-glutamyl-glycyl-L-arginine-4-nitroa... Pesticide Standards CS-O-33024 59068-47-2 Enquire