Cas no 70-26-8 ((2S)-2,5-diaminopentanoic acid)

(2S)-2,5-diaminopentanoic acid structure
70-26-8 structure
Product Name:(2S)-2,5-diaminopentanoic acid
CAS No:70-26-8
MF:C5H12N2O2
MW:132.160981178284
MDL:MFCD00242584
CID:33911
PubChem ID:6262
Update Time:2025-09-19

(2S)-2,5-diaminopentanoic acid Chemical and Physical Properties

Names and Identifiers

    • (S)-2,5-Diaminopentanoic acid
    • L-Ornithine
    • ORNITHINE
    • (2S)-2,5-Diaminopentanoic acid
    • (S)-2,5-Diaminovaleric acid
    • 2,5-diaminopentanoic acid
    • 2,5-Diaminovaleric acid
    • 5-Amino-L-norvaline
    • L,5 diaminopentanoic acid
    • C00077
    • Ornithinum [Latin]
    • (S)-2
    • L-Norvaline, 5-amino-
    • ORNITHINE, L-
    • CHEMBL446143
    • LS-98388
    • LS-185995
    • ORN
    • bmse000162
    • s4857
    • 8AB10027-4D34-488A-9F55-E86692CA2853
    • L-(-)-Ornithine
    • D08302
    • D03ZNB
    • (S)-a,d-Diaminovalerate
    • L-Ornithine (9CI)
    • BDBM50487430
    • Ornithine, L- (8CI)
    • A866639
    • (C5-H12-N2-O2)x-
    • (S)-Ornithine
    • Ornithine (INN)
    • EINECS 200-731-7
    • NSC-758894
    • ()-Ornithine
    • 1hqg
    • CS-4817
    • 3jdw
    • levo-ornithine
    • Pentanoic acid, 2,5-diamino
    • AS-80993
    • ORNITHINE [INCI]
    • W-104562
    • CHEBI:15729
    • 1lah
    • S4653
    • 5-diaminopentanoic acid
    • L- ornithine
    • Ornithine, L-, peptides
    • alpha,delta-diaminovaleric acid
    • Ornitina
    • DB00129
    • SCHEMBL8579
    • (R,S)-2,5-Diamino-pentanoic acid
    • SMP2_000009
    • L-Ornithine;2,5-Diaminovaleric acid
    • AHLPHDHHMVZTML-BYPYZUCNSA-N
    • Ornithine (VAN)
    • GTPL725
    • L-Ornithine2,5-Diaminovalericacid
    • E524N2IXA3
    • ORNITHINE [MART.]
    • EN300-96942
    • (S)-2,5-Diaminopentanoate
    • HY-B1352
    • (+)-S-Ornithine
    • Ornitina [Spanish]
    • UNII-E524N2IXA3
    • BRN 1722298
    • AKOS006239312
    • ORNITHINE [MI]
    • DTXSID00883219
    • C5H12N2O2
    • Ornithine [INN]
    • (S)-a,d-Diaminovaleric acid
    • AC-13803
    • Q410198
    • NSC 758894
    • 4-04-00-02644 (Beilstein Handbook Reference)
    • L-Ornithine, HCl
    • 70-26-8
    • Pharmakon1600-01504524
    • (S)-alpha,delta-Diaminovaleric acid
    • LYSINE ACETATE IMPURITY E [EP IMPURITY]
    • 25104-12-5
    • MFCD00242584
    • L(-)-Ornithine
    • NCGC00263569-01
    • Ornithine, (L)-Isomer
    • Pentanoic acid, 2,5-diamino-, (S)-
    • Ornithinum
    • L( )-Ornithine
    • NSC758894
    • alpha, delta-diaminovaleric acid
    • ORNITHINE [WHO-DD]
    • L-Ornithine, monohydrochloride
    • NS00068568
    • L-ornithinium(2+)
    • (R)-ornithine
    • D-ornithine
    • L-Orn
    • ornithinium(1+)
    • 616-07-9
    • (2R)-2,5-diammoniopentanoate
    • DL-Ornithine
    • 6211-16-1
    • ornithine monocation
    • D-ornithinium cation
    • 348-66-3
    • L-ornithine dication
    • 3184-13-2
    • pentanoic acid, 2,5-diamino-
    • DA-75080
    • A11694
    • Ornithinum (Latin)
    • 2, 5-diaminovaleric acid
    • 2, 5-diaminopentanoate
    • 200-731-7
    • DTXSID00860383
    • DTXCID40197342
    • 2, 5-diaminopentanoic acid
    • (S)alpha,deltaDiaminovaleric acid
    • DTXCID201022768
    • A05BA06
    • LNorvaline, 5amino
    • (S)Ornithine
    • Pentanoic acid, 2,5diamino, (S)
    • L()Ornithine
    • LYSINE ACETATE IMPURITY E (EP IMPURITY)
    • (S)2,5Diaminopentanoic acid
    • ORNITHINE (MART.)
    • (2S)-2,5-diaminopentanoate;hydron
    • LOrnithine
    • (2S)-2,5-diaminopentanoic acid
    • MDL： MFCD00242584
    • Inchi： 1S/C5H12N2O2/c6-3-1-2-4(7)5(8)9/h4H,1-3,6-7H2,(H,8,9)/t4-/m0/s1
    • InChI Key： AHLPHDHHMVZTML-BYPYZUCNSA-N
    • SMILES： OC([C@H](CCCN)N)=O

Computed Properties

  • Exact Mass: 132.09000
  • Monoisotopic Mass: 132.089878
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 3
  • Hydrogen Bond Acceptor Count: 4
  • Heavy Atom Count: 9
  • Rotatable Bond Count: 4
  • Complexity: 95
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 1
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 89.3
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: nothing

Experimental Properties

  • Color/Form: Solid
  • Density: 1.1740 (rough estimate)
  • Melting Point: 140°C
  • Boiling Point: 345.6°C at 760 mmHg
  • Flash Point: 177°C
  • Refractive Index: 1.4496 (estimate)
  • PSA: 89.34000
  • LogP: 0.53780
  • pka: 1.705(at 25℃)
  • Specific Rotation: D25 +11.5° (c = 6.5)
  • Vapor Pressure: 0.0±1.4 mmHg at 25°C

(2S)-2,5-diaminopentanoic acid Security Information

  • Signal Word：Warning
  • Hazard Statement： H302-H315-H319-H335
  • Warning Statement： P261-P305+P351+P338
  • Hazardous Material transportation number：UN 2810 6.1/PG 2
  • WGK Germany：3
  • Safety Instruction： S20/21; S28; S45
  • Hazardous Material Identification： T N
  • Storage Condition：4°C, protect from light
  • Packing Group：II
  • Hazard Level：6.1
  • Safety Term：6.1
  • Packing Group：II
  • Risk Phrases：R23/25; R33; R50/53

(2S)-2,5-diaminopentanoic acid Customs Data

  • HS CODE：2922499990
  • Customs Data：

    China Customs Code:

    2922499990

    Overview:

    2922499990 Other amino acids and their esters and their salts(Except those containing more than one oxygen-containing group). VAT:17.0% Tax refund rate:9.0% Regulatory conditions:AB(Customs clearance form for Inbound Goods,Customs clearance form for outbound goods) MFN tariff:6.5% general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to, The color of ethanolamine and its salt should be reported, The package of ethanolamine and its salt shall be declared

    Regulatory conditions:

    A.Customs clearance form for Inbound Goods
    B.Customs clearance form for outbound goods

    Inspection and quarantine category:

    P.Imported animals and plants\Quarantine of animal and plant products
    Q.Outbound animals and plants\Quarantine of animal and plant products
    R.Sanitary supervision and inspection of imported food
    S.Sanitary supervision and inspection of exported food
    M.Import commodity inspection
    N.Export commodity inspection

    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%

(2S)-2,5-diaminopentanoic acid Pricemore >>

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(2S)-2,5-diaminopentanoic acid Production Method

Production Method 1

Reaction Conditions
1.1R:CoCl2, C:9025-12-1, S:H2O, S:D2O, 24 h, 40°C, pH 8
1.2R:HCl, S:H2O
Reference
Direct monitoring of biocatalytic deacetylation of amino acid substrates by 1H NMR reveals fine details of substrate specificity
By De Cesare, Silvia et al, Organic & Biomolecular Chemistry, 2021, 19(22), 4904-4909

Production Method 2

Reaction Conditions
1.1R:HCl, S:H2O, 60 h, 28°C, pH 6.5
Reference
Development of a system of high ornithine and citruliine production by a plant-derived lactic acid bacterium, Weissella confusa K-28
By Rakhimuzzaman, Md. et al, Biological & Pharmaceutical Bulletin, 2019, 42(9), 1581-1589

Production Method 3

Reaction Conditions
1.1S:H2O, 12 h
Reference
Metabolic engineering of Corynebacterium glutamicum S9114 to enhance the production of L-ornithine driven by glucose and xylose
By Zhang, Bin et al, Bioresource Technology, 2019, 284, 204-213

Production Method 4

Reaction Conditions
1.1C:9000-96-8, C:16397-91-4, S:H2O, 10 min, 45°C, pH 9.5
1.2R:Cl3CCO2H
Reference
Construction of a food-grade arginase expression system and its application in L-ornithine production with whole cell biocatalyst
By Kai, Huang et al, Process Biochemistry (Oxford, 2018, 73, 94-101

Production Method 5

Reaction Conditions
1.112 h, rt
Reference
Enhanced L-ornithine production by systematic manipulation of L-ornithine metabolism in engineered Corynebacterium glutamicum S9114
By Zhang, Bin et al, Bioresource Technology, 2018, 250, 60-68

Production Method 6

Reaction Conditions
1.1R:NaOH, S:H2O
Reference
Complex formation equilibria of ternary complexes of Cu(II) involving pyridine-2-carboxylic acid and various biologically relevant ligands
By Shoukry, Eman M. et al, International Journal of Current Research in Chemistry and Pharmaceutical Sciences, 2016, 3(10), 32-43

(2S)-2,5-diaminopentanoic acid Raw materials

(2S)-2,5-diaminopentanoic acid Preparation Products

(2S)-2,5-diaminopentanoic acid Suppliers

Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
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(CAS:70-26-8)L-Ornithine
Order Number:LE18523
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:19
Price ($):discuss personally
Suzhou Senfeida Chemical Co., Ltd
Gold Member
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(CAS:70-26-8)L-Ornithine
Order Number:sfd4828
Stock Status:in Stock
Quantity:200kg
Purity:99.9%
Pricing Information Last Updated:Friday, 19 July 2024 14:33
Price ($):discuss personally
Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:70-26-8)(2S)-2,5-diaminopentanoic acid
Order Number:A866639
Stock Status:in Stock
Quantity:5.0g/10.0g/25.0g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 09:00
Price ($):263.0/447.0/893.0

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