BioBioPha
China
Product Name: L-5-Hydroxytryptophan
Price: ￥Inquiry/20mg
Purity: 98.0%
Stocking Period: 1 Day
Contact: Xueping-Zheng

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: L-5-Hydroxytryptophan
Price: ￥138.0/5g ￥478.0/25g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia

DC Chemicals Limited
China
Product Name: L-5-Hydroxytryptophan (L-5-HTP; Oxitriptan)
Price: $50.0/100mg $100.0/250mg $200.0/1g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: L-5-Hydroxytryptophan
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Zhejiang Hangyu API Co., Ltd
China
Product Name: L-5-Hydroxytryptophan
Price: ￥Inquiry/1kg
Purity: 99.5%
Stocking Period: Inquiry
Contact: Vinnie

4350-09-8

4350-09-8 structure

Name: L-5-Hydroxytryptophan
Chemical Name: 5-hydroxy-L-tryptophan
CAS Number: 4350-09-8
Molecular Formula: C₁₁H₁₂N₂O₃
Molecular Weight: 220.22
Catalog: Biochemical Amino acids and their derivatives Tryptophan derivatives
Create Date: 2018-02-08 08:00:00
Modify Date: 2024-01-02 08:10:48
L-5-Hydroxytryptophan (L-5-HTP), a naturally occurring amino acid and a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid, is the immediate precursor of the neurotransmitter serotonin and a reserpine antagonist[1]. L-5-Hydroxytryptophan (L-5-HTP) is used to treat fibromyalgia, myoclonus, migraine, and cerebellar ataxia[2][3][4][5].

Name	5-hydroxy-L-tryptophan
Synonyms	Telesol Oxyfan oxitriptan Cincofarm Levothym Oxitriptan 1 MFCD00064341 5-hydroxy-L-tryptophan zwitterion 5-Hydroxyl-L-tryptophan L-5HTP L-Tryptophan, 5-hydroxy- (2S)-2-amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acid 5-Hydroxy-L-tryptophan EINECS 224-411-1 Serotonyl L-5-Hydroxytryptophan L-5-HTP L-2-Amino-3-(5-hydroxyindolyl)propionic acid Tryptophan, 5-hydroxy-, L-

Description	L-5-Hydroxytryptophan (L-5-HTP), a naturally occurring amino acid and a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid, is the immediate precursor of the neurotransmitter serotonin and a reserpine antagonist[1]. L-5-Hydroxytryptophan (L-5-HTP) is used to treat fibromyalgia, myoclonus, migraine, and cerebellar ataxia[2][3][4][5].
Related Catalog	Research Areas >> Metabolic Disease Research Areas >> Neurological Disease
Target	Human Endogenous Metabolite
References	[1]. ARVID CARLSSON, et al. 3,4-Dihydroxyphenylalanine and 5-Hydroxytryptophan as Reserpine Antagonists. Nature 180, page1200 (1957). [2]. Caruso I, et al. Double-blind study of 5-hydroxytryptophan versus placebo in the treatment of primary fibromyalgia syndrome. J Int Med Res. 1990 May-Jun;18(3):201-9. [3]. Thal LJ, et al. Treatment of myoclonus with L-5-hydroxytryptophan and carbidopa: clinical, electrophysiological, and biochemical observations. Ann Neurol. 1980 Jun;7(6):570-6. [4]. Boiardi A, et al. 5-OH-Tryptophane in migraine: clinical and neurophysiological considerations. J Neurol. 1981;225(1):41-6. [5]. Trouillas P, et al. Improvement of cerebellar ataxia with levorotatory form of 5-hydroxytryptophan. A double-blind study with quantified data processing. Arch Neurol. 1988 Nov;45(11):1217-22.

Density	1.5±0.1 g/cm3
Boiling Point	520.6±50.0 °C at 760 mmHg
Melting Point	270 °C (dec.)(lit.)
Molecular Formula	C₁₁H₁₂N₂O₃
Molecular Weight	220.22
Flash Point	268.7±30.1 °C
Exact Mass	220.084793
PSA	99.34000
LogP	-0.14
Vapour Pressure	0.0±1.4 mmHg at 25°C
Index of Refraction	1.737
Water Solubility	Slightly soluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YN7110000

CHEMICAL NAME :: Tryptophan, 5-hydroxy-, L-

CAS REGISTRY NUMBER :: 4350-09-8

BEILSTEIN REFERENCE NO. :: 0088200

LAST UPDATED :: 199712

DATA ITEMS CITED :: 19

MOLECULAR FORMULA :: C11-H12-N2-O3

MOLECULAR WEIGHT :: 220.25

WISWESSER LINE NOTATION :: T56 BMJ D1YZVQ GQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 243 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - excitement Behavioral - ataxia

REFERENCE :: NYKZAU Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. (Nippon Yakuri Gakkai, c/o Kyoto Daigaku Igakubu Yakurigaku Kyoshitsu, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606, Japan) V.40- 1944- Volume(issue)/page/year: 69,523,1973

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 91 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - excitement Behavioral - ataxia

REFERENCE :: NYKZAU Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. (Nippon Yakuri Gakkai, c/o Kyoto Daigaku Igakubu Yakurigaku Kyoshitsu, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606, Japan) V.40- 1944- Volume(issue)/page/year: 69,523,1973

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 149 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 27 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1708 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 298 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 418 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 375 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - excitement Behavioral - ataxia

REFERENCE :: NYKZAU Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. (Nippon Yakuri Gakkai, c/o Kyoto Daigaku Igakubu Yakurigaku Kyoshitsu, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606, Japan) V.40- 1944- Volume(issue)/page/year: 69,523,1973

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 285 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - tremor Behavioral - convulsions or effect on seizure threshold

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 780 mg/kg/30D-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes Kidney, Ureter, Bladder - changes in bladder weight Endocrine - changes in thymus weight

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5148 mg/kg/26W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes Endocrine - other changes Related to Chronic Data - changes in testicular weight

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,307,1975 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 700 mg/kg

SEX/DURATION :: female 7-13 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) Reproductive - Maternal Effects - other effects Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,356,1975

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 700 mg/kg

SEX/DURATION :: female 7-13 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Embryo or Fetus - fetal death Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,356,1975

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 3 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - eye/ear Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - urogenital system

REFERENCE :: TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 27,85A,1983

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 3 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - other developmental abnormalities

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: PB83-231332

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 2100 mg/kg

SEX/DURATION :: female 7-13 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) Reproductive - Maternal Effects - other effects Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,356,1975

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 2100 mg/kg

SEX/DURATION :: female 7-13 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Embryo or Fetus - fetal death

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,356,1975

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 700 mg/kg

SEX/DURATION :: female 7-13 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 6,356,1975

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H301-H315-H319-H335
Precautionary Statements	Missing Phrase - N15.00950417-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes	Xn:Harmful;
Risk Phrases	R22
Safety Phrases	S36-S26
RIDADR	UN 2811 6.1/PG 3
WGK Germany	3
RTECS	YN7110000
Packaging Group	III
Hazard Class	6.1
HS Code	2929909090

90830-06-1

~43%

4350-09-8

Literature: Ube Industries, Ltd. Patent: US4497957 A1, 1985 ;

73-22-3

~11%

25198-02-1

25242-90-4

13567-14-1

Detail

Literature: Pharmazie, , vol. 40, # 11 p. 811 - 811

3520-59-0

4350-09-8

Literature: Journal of Organic Chemistry, , vol. 22, p. 306,307

1953-54-4

56-45-1

~68%

4350-09-8

Literature: Berg, E. M. M. van den; Jansen, F. J. H. M.; Goede, A. T. J. W. de; Baldew, A. U.; Lugtenburg, J. Recueil des Travaux Chimiques des Pays-Bas, 1990 , vol. 109, # 4 p. 287 - 297

3017-27-4

4350-09-8

Literature: Journal of Organic Chemistry, , vol. 22, p. 306,307

73-22-3

4350-09-8

Literature: Journal of Molecular Structure, , vol. 1045, p. 124 - 130

Precursor 6
90830-06-1 73-22-3 3520-59-0 1953-54-4
56-45-1 3017-27-4
DownStream 2
50-67-9 119768-45-5

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

4350-09-8	13567-14-1
56-69-9	119768-45-5
406681-37-6	145224-90-4
150242-19-6	17469-40-8
60575-35-1	60971-91-7