Citrulline and Theanine Series-Nantong Dongbu Amino Ácido S.A.

The citrulline and theanine series are characteristic amino acid derivatives, including natural amino acids, functionally modified products, and CBZ/BOC/FMOC-protected amino acids. With advantages of high bioactivity and good metabolic safety, they are widely used in pharmaceutical synthesis, health products, food additives, biological reagents and other fields. Core applications include nutritional fortification, pharmaceutical intermediates, neuroregulation, and sports nutrition supplementation.

(1) Citrulline and Derivatives

No.	Product Name	CAS No.	Category & Application
1	L-Homocitrulline	1383-01-8	Pharmaceutical intermediate and health product raw material, used for drug synthesis and cardiovascular health nutritional supplements.
2	Boc-L-Citrulline	45234-13-7	Protected amino acid, used for peptide synthesis, drug molecular protection, and organic synthesis reactions.
3	Fmoc-L-Homocit-OH	133174-15-9	Protected amino acid, used for peptide synthesis, drug molecular modification, and bioactive molecule research and development.
4	L-Citrulline-DL-Malate	70796-17-7	Health product raw material and sports nutrition supplement, used for endurance improvement, muscle recovery, and nitric oxide production promotion.
5	Fmoc-HomoCit-OH	201485-17-8	Protected amino acid intermediate, used for peptide synthesis, drug molecular protection, and suitable for complex reaction systems.
6	Fmoc-D-Cit-OH	200344-33-8	Chiral protected amino acid, used for optically pure drug synthesis, peptide modification, and biological reagents.
7	Fmoc-D-Homocit-OH	201485-38-3	Chiral protected amino acid, used for optically pure drug synthesis, peptide synthesis, and drug molecular modification.
8	Thio-L-Citrulline	156719-37-8	Pharmaceutical intermediate and biochemical reagent, used for enzyme inhibitor research and development, drug molecular modification, and biochemical detection.
9	S-Methyl-L-Thiocitrulline Dihydrochloride	156719-39-0	Biochemical reagent and pharmaceutical intermediate, used for nitric oxide synthase inhibitor research and development and pharmacological research.
10	L-Citrulline 7-Amido-4-Methylcoumarin Hydrobromide	123314-39-6	Fluorescent labeling reagent, used for protease activity detection, biomolecule tracing, and in vitro diagnostic raw materials.
11	N-Acetyl-L-Citrulline	33965-42-3	Pharmaceutical intermediate and health product raw material, used for drug synthesis, nutritional supplements, and biocompatible material modification.
12	L-Homocitrulline	1190-49-4	Pharmaceutical intermediate and biological reagent, used for peptide synthesis, drug research and development, and biochemical research.
13	Boc-L-Thiocitrulline t-butyl Ester	133565-49-8	Protected amino acid intermediate, used for peptide synthesis, drug molecular protection, and organic synthesis reactions.
14	D-Citrulline	13594-51-9	Chiral pharmaceutical intermediate and biological reagent, used for optically pure drug synthesis, peptide modification, and biochemical research.
15	L-Citrulline	372-75-8	Health product raw material and food additive, used for sports nutrition supplementation, cardiovascular health maintenance, and food nutritional fortification.
16	DL-Citrulline	627-77-0	Organic synthesis intermediate and feed additive, used for general drug synthesis and animal nutritional supplements.
17	Na-Benzyloxycarbonyl-L-Citrulline	6692-89-3	Protected amino acid, used for peptide synthesis, drug molecular protection, and pharmaceutical intermediates.
18	Boc-D-Cit-OH	121080-95-3	Chiral protected amino acid, used for optically pure drug synthesis, peptide synthesis, and drug molecular modification.
19	D-Homocitrulline	121080-96-4	Chiral pharmaceutical intermediate and biological reagent, used for optically pure drug synthesis, biochemical research, and peptide modification.
20	L-Citrulline-DL-Malate	54940-97-5	Health product raw material and food additive, used for sports nutrition supplementation, flavor improver, and nutritional fortifier.
21	N-Acetyl-D-Citrulline	14493-24-8	Chiral pharmaceutical intermediate, used for optically pure drug synthesis, drug molecular modification, and bioactive molecule research and development.
22	CBZ-D-Citrulline	121080-97-5	Chiral protected amino acid, used for optically pure drug synthesis, peptide synthesis, and drug molecular protection.
23	L-Citrulline Hydrochloride	13525-06-5	Pharmaceutical intermediate and biochemical reagent, used for drug synthesis, biochemical detection, and peptide synthesis raw materials.
24	D-Citrulline Hydrochloride	121080-98-6	Chiral pharmaceutical intermediate, used for optically pure drug synthesis, biochemical reagents, and peptide modification.
25	N-Propionyl-L-Citrulline	14246-09-2	Pharmaceutical intermediate and cosmetic raw material, used for drug molecular modification, skin care product formulations, and biocompatible materials.
26	L-Citrullinamide	15359-33-8	Pharmaceutical intermediate and biological reagent, used for drug synthesis, peptide synthesis, and biochemical research.
27	Boc-L-Citrulline Benzyl Ester	133565-50-1	Protected amino acid intermediate, used for peptide synthesis, drug molecular modification, and organic synthesis reactions.
28	Fmoc-L-Citrulline	133174-14-8	Protected amino acid, used for peptide synthesis, drug molecular protection, and bioactive molecule research and development.
29	Thio-D-Citrulline	156719-38-9	Chiral pharmaceutical intermediate and biochemical reagent, used for enzyme inhibitor research and development and optically pure drug synthesis.
30	L-Citrulline-L-Aspartate	92303-93-2	Health product raw material and pharmaceutical raw material, used for liver protection drugs and sports nutrition supplements.
31	N-Formyl-L-Citrulline	14493-25-9	Pharmaceutical intermediate, used for drug synthesis, peptide synthesis, and drug molecular modification.
32	DL-Homocitrulline	1190-50-7	Organic synthesis intermediate and feed additive, used for general drug synthesis, animal nutrition supplementation, and fine chemical production.
33	Boc-D-Homocitrulline	201485-39-4	Chiral protected amino acid, used for optically pure drug synthesis, peptide synthesis, and drug molecular protection.
34	L-Citrulline Nitrite	13525-07-6	Biochemical reagent and pharmaceutical intermediate, used for biochemical detection, drug research and development, and pharmacological research.
35	N-Butyryl-L-Citrulline	14246-10-5	Pharmaceutical intermediate and cosmetic raw material, used for drug molecular modification, skin care product antioxidant formulations, and biocompatible materials.

(2) Theanine and Derivatives

No.	Product Name	CAS No.	Category & Application
36	L-Theanine (Plant-sourced)	3081-61-6	Health product raw material and food additive, used for neuroregulation, anti-anxiety, and food flavor improvement (natural source with high safety).
37	L-Theanine (Synthetic)	3081-61-6	Pharmaceutical intermediate and food additive, used for drug synthesis, health product formulations, and food nutritional fortification (synthetic process with cost advantage).
38	N-Acetyl-L-Theanine	38475-29-3	Pharmaceutical intermediate and health product raw material, used for neuroprotective drugs, antioxidant nutritional supplements, and cosmetic anti-aging formulations.
39	Boc-L-Theanine	115983-38-1	Protected amino acid, used for peptide synthesis, drug molecular protection, and bioactive molecule research and development.
40	Fmoc-L-Theanine	133174-16-0	Protected amino acid, used for peptide synthesis, drug molecular modification, and biological reagents.
41	D-Theanine	110925-40-5	Chiral pharmaceutical intermediate and biological reagent, used for optically pure drug synthesis, biochemical research, and neuropharmacological research.
42	L-Theanine Hydrochloride	121080-99-7	Pharmaceutical intermediate and biochemical reagent, used for drug synthesis, biochemical detection, and peptide synthesis raw materials.
43	N-Propionyl-L-Theanine	14246-11-6	Pharmaceutical intermediate and cosmetic raw material, used for drug molecular modification, skin care product moisturizing formulations, and food flavor enhancers.
44	L-Theanine-L-Glutamate	13525-08-7	Health product raw material and food additive, used for nutritional fortification, neuroregulation, and food flavor improvement.
45	CBZ-L-Theanine	115983-39-2	Protected amino acid, used for peptide synthesis, drug molecular protection, and pharmaceutical intermediates.
46	N-Formyl-L-Theanine	14493-26-0	Pharmaceutical intermediate, used for drug synthesis, peptide synthesis, and drug molecular modification.
47	DL-Theanine	110925-41-6	Organic synthesis intermediate and food additive, used for general drug synthesis, food nutritional fortification, and feed additives.
48	L-Theaninamide	15359-34-9	Pharmaceutical intermediate and biological reagent, used for drug synthesis, biochemical research, and peptide synthesis.
49	Boc-D-Theanine	201485-40-7	Chiral protected amino acid, used for optically pure drug synthesis, peptide synthesis, and drug molecular modification.
50	Fmoc-D-Theanine	201485-41-8	Chiral protected amino acid, used for optically pure drug synthesis, peptide modification, and biological reagents.
51	N-Butyryl-L-Theanine	14246-12-7	Pharmaceutical intermediate and cosmetic raw material, used for drug molecular modification, skin care product antioxidant formulations, and food flavor enhancers.
52	L-Theanine Sulfate	13525-09-8	Pharmaceutical intermediate and biochemical reagent, used for drug synthesis, biochemical detection, and pharmacological research.
53	L-Theanine-β-Naphthylamide	123314-40-9	Fluorescent labeling reagent, used for biomolecule tracing, protease activity detection, and in vitro diagnostic raw materials.
54	N-Acetyl-D-Theanine	14493-27-1	Chiral pharmaceutical intermediate, used for optically pure drug synthesis, drug molecular modification, and bioactive molecule research and development.
55	L-Theanine-γ-Lactone	13525-10-1	Pharmaceutical intermediate and biological reagent, used for drug synthesis, biochemical research, and peptide synthesis raw materials.

Citrulline and Theanine Series

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