L-Ornithine

Modify Date: 2025-08-21 21:52:48

L-Ornithine structure	Common Name	L-Ornithine
	CAS Number	70-26-8	Molecular Weight	132.161
	Density	1.2±0.1 g/cm3	Boiling Point	308.7±32.0 °C at 760 mmHg
	Molecular Formula	C₅H₁₂N₂O₂	Melting Point	140ºC
	MSDS	N/A	Flash Point	140.5±25.1 °C

Use of L-Ornithine

L-ornithine has an antifatigue effect in increasing the efficiency of energy consumption and promoting the excretion of ammonia.

Name	L-ornithine
Synonym	More Synonyms

Description	L-ornithine has an antifatigue effect in increasing the efficiency of energy consumption and promoting the excretion of ammonia.
Related Catalog	Signaling Pathways >> Others >> Others Research Areas >> Others

Density	1.2±0.1 g/cm3
Boiling Point	308.7±32.0 °C at 760 mmHg
Melting Point	140ºC
Molecular Formula	C₅H₁₂N₂O₂
Molecular Weight	132.161
Flash Point	140.5±25.1 °C
Exact Mass	132.089874
PSA	89.34000
LogP	-0.96
Vapour Pressure	0.0±1.4 mmHg at 25°C
Index of Refraction	1.508
Storage condition	2~8°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RM2980820

CHEMICAL NAME :: Ornithine, L-

CAS REGISTRY NUMBER :: 70-26-8

BEILSTEIN REFERENCE NO. :: 1722298

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C5-H12-N2-O2

MOLECULAR WEIGHT :: 132.19

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 10 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 372,75,1996 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2605 No. of Facilities: 420 (estimated) No. of Industries: 1 No. of Occupations: 5 No. of Employees: 3259 (estimated) No. of Female Employees: 2648 (estimated)

Hazard Codes	T,N
Risk Phrases	R23/25:Toxic by inhalation and if swallowed . R33:Danger of cumulative effects. R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Phrases	S20/21-S28-S45-S60-S61
RIDADR	UN 2810 6.1/PG 2
WGK Germany	3
Packaging Group	II
Hazard Class	6.1
HS Code	2922499990

Precursor 4
CAS#:3184-13-2 L(+)-Ornithine ... CAS#:74-79-3 L-arginine CAS#:126175-51-7 cyclo(-ΔOrn(Boc... CAS#:52816-28-1 N5-Acetyl-N5-be...
DownStream 10
CAS#:34294-79-6 3-Amino-2-piper... CAS#:3304-51-6 H-Orn(Z)-OH CAS#:372-75-8 L-Citruline CAS#:147071-84-9 N'-Fmoc-L-ornithine
CAS#:74-79-3 L-arginine CAS#:503-74-2 3-Methylbutanoi... CAS#:124-38-9 Carbon dioxide CAS#:7664-41-7 Ammonia
CAS#:98-92-0 Nicotinamide CAS#:2274-58-0 ZL-Orn(Z)-OH

HS Code	2922499990
Summary	HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Ornithine, L- (8CI)

ORNITHINE, L-

2,5-diaminopentanoic acid

(S)-ornithine

(S)-2,5-Diaminopentanoic acid

4-04-00-02644 (Beilstein Handbook Reference)

5-Amino-L-norvaline

Orn

(+)-S-Ornithine

L-(+)-Ornithine

L-Ornithine

EINECS 200-731-7

L,5 diaminopentanoic acid

(S)-a,d-Diaminovaleric Acid

(2S)-2,5-diaminopentanoic acid

Ornithine

(S)-2,5-Diaminovaleric acid

MFCD00242584

(2S)-2,5-diaminovaleric acid

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: L-Ornithine
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: L-Ornithine
Price: ￥328.0/20mg
Purity: 98.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

DC Chemicals Limited
China
Product Name: L-Ornithine
Price: $100.0/100mg $200.0/250mg $400.0/1g
Purity: 98.0%
Delivery: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

ShangHai DC Chemicals Co.,Ltd
China
Product Name: L-Ornithine
Price: ￥Inquiry/1g
Purity: 98.9%
Delivery: 1 Day
Contact: Tony Lai
Email: order@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: L-Ornithine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Shanghai Amole Biotechnology Co., Ltd.
China
Product Name: L-Ornithine
Price: ￥Inquiry/1g ￥Inquiry/100g ￥Inquiry/100mg ￥Inquiry/10g
Purity: 98.0%
Delivery: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: TIANFU-CHEM_L-Ornithine,cas:70-26-8
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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L-Ornithine suppliers

Price: $66/10mM*1mLinDMSO

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L-Ornithine

Use of L-Ornithine

Names

L-Ornithine Biological Activity

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Synthetic Route

Precursor & DownStream

Customs

Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.