Cas no 4931-66-2 (Methyl L-pyroglutamate)

Methyl L-pyroglutamate structure
Methyl L-pyroglutamate structure
Product Name:Methyl L-pyroglutamate
CAS No:4931-66-2
MF:C6H9NO3
MW:143.140561819077
MDL:MFCD00080931
CID:45426
PubChem ID:78646
Update Time:2025-04-18

Methyl L-pyroglutamate Chemical and Physical Properties

Names and Identifiers

    • Methyl (S)-(+)-2-pyrrolidone-5-carboxylate
    • H-pyroGlu-OMe
    • L-Pyroglutamic Acid Methyl Ester
    • H-Pyr-OMe
    • Methyl (S)-Pyroglutamate
    • Methyl L-Pyroglutamate
    • (S)-methyl 5-oxopyrrolidine-2-carboxylate
    • L-PYR-OME
    • methyl (2S)-5-oxopyrrolidine-2-carboxylate
    • Methyl (S)-Pyrogluta
    • (S)-5-Oxopyrrolidine-2-carboxylic Acid Methyl Ester
    • Methyl (S)-5-Oxopyrrolidine-2-carboxylate
    • [ "" ]
    • Methyl pyroglutamate
    • Methyl 5-oxo-L-prolinate
    • Proline, 5-oxo-, methyl ester
    • HQGPKMSGXAUKHT-BYPYZUCNSA-N
    • (+)-L-Pyroglutamic acid methyl ester
    • (S)-(+)-Methyl 2-pyrrolidone-5-carboxylate
    • methyl-5-oxo-l-prolinat
    • L-Proline, 5-oxo-, methyl ester
    • Methyl 5-oxo-2-pyrrolidinecarboxylate #
    • Pyr
    • AKOS005145517
    • P-8580
    • Methyl ester of L-Pyrrolidonecarboxylic acid
    • A7376
    • J-517904
    • (S)-methyl 2-pyrrolidone-5-carboylate
    • pyroglutamic acid methyl ester
    • AS-38129
    • CS-D0637
    • MFCD00080931
    • methyl(s)-(+)-2 pyrrolidone-5-carboxylate
    • NS00031891
    • (L)-pyroglutamic acid methyl ester
    • methyl(S)-(+)-2-pyrrolidone-5-carboxylate
    • 4931-66-2
    • 5-Oxo-d-proline methyl ester
    • AM20100208
    • M2198
    • (S)-5-oxoproline methyl ester
    • pyroglutamic methyl ester
    • SCHEMBL78947
    • (S)-Pyroglutamic Acid Methyl Ester
    • EN300-132496
    • HY-32291
    • CHEMBL4238146
    • methyl (S){+)-2-pyrrolidone-5-carboxylate
    • Methyl (S)-2-pyrrolidone-6-carboxylate
    • (S)-5-(Methoxycarbonyl)-2-pyrrolidone
    • DTXSID00197767
    • (S)-methyl 5-oxo-pyrrolidine-2-carboxylate
    • Methyl (S)-(+)-2-pyrrolidone-5-carboxylate, 97%
    • AKOS000280633
    • EINECS 225-567-3
    • methyl (2S)-5-pyrrolidone-2-carboxylate
    • (s)-5-oxo-pyrrolidine-2-carboxylic acid methyl ester
    • DA-55402
    • BBL101837
    • STL555634
    • Methyl L-pyroglutamate
    • MDL: MFCD00080931
    • Inchi: 1S/C6H9NO3/c1-10-6(9)4-2-3-5(8)7-4/h4H,2-3H2,1H3,(H,7,8)/t4-/m0/s1
    • InChI Key: HQGPKMSGXAUKHT-BYPYZUCNSA-N
    • SMILES: O(C)C([C@@H]1CCC(N1)=O)=O

Computed Properties

  • Exact Mass: 143.05800
  • Monoisotopic Mass: 143.058
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 3
  • Heavy Atom Count: 10
  • Rotatable Bond Count: 2
  • Complexity: 166
  • 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
  • Surface Charge: 0
  • Tautomer Count: 3
  • XLogP3: -0.4
  • Topological Polar Surface Area: 55.4

Experimental Properties

  • Color/Form: Oil
  • Density: 1.226?g/mL?at 25?°C(lit.)
  • Boiling Point: 90?°C/0.3?mmHg(lit.)
  • Flash Point: Degrees Fahrenheit:235.4°F
    Degrees Celsius:113°C
  • Refractive Index: n20/D 1.486(lit.)
  • PSA: 55.40000
  • LogP: -0.23320
  • Specific Rotation: 10.5 o (c=1, EtOH)
  • Optical Activity: [α]20/D +10.5°, c =?1 in ethanol
  • Solubility: Not determined
  • Sensitiveness: Sensitive to air

Methyl L-pyroglutamate Security Information

  • Symbol: GHS07
  • Prompt:warning
  • Signal Word:Warning
  • Hazard Statement: H315-H319-H335
  • Warning Statement: P261-P305+P351+P338
  • Hazardous Material transportation number:NONH for all modes of transport
  • WGK Germany:3
  • Hazard Category Code: 36/37/38
  • Safety Instruction: S26-S36
  • Hazardous Material Identification: Xi
  • Storage Condition:Room temperature
  • Safety Term:S26;S36
  • Risk Phrases:R36/37/38

Methyl L-pyroglutamate Customs Data

  • HS CODE:2933790090
  • Customs Data:

    China Customs Code:

    2933790090

    Overview:

    2933790090 Other lactams. VAT:17.0% Tax refund rate:9.0% Regulatory conditions:nothing MFN tariff:9.0% general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to, Please indicate the appearance of Urotropine, 6- caprolactam please indicate the appearance, Signing date

    Summary:

    2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Methyl L-pyroglutamate Pricemore >>

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Methyl L-pyroglutamate Suppliers

Suzhou Senfeida Chemical Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:4931-66-2)Methyl L-pyroglutamate
Order Number:sfd6270
Stock Status:in Stock
Quantity:200kg
Purity:99.9%
Pricing Information Last Updated:Friday, 19 July 2024 14:34
Price ($):discuss personally
Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:4931-66-2)MethylL-pyroglutamate
Order Number:LE14958
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:11
Price ($):discuss personally

Methyl L-pyroglutamate Related Literature

Recommended suppliers
Suzhou Senfeida Chemical Co., Ltd
(CAS:4931-66-2)Methyl L-pyroglutamate
sfd6270
Purity:99.9%
Quantity:200kg
Price ($):Inquiry
Email
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:4931-66-2)MethylL-pyroglutamate
LE14958
Purity:99%
Quantity:25KG,200KG,1000KG
Price ($):Inquiry
Email