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ChemicalBook >> CAS DataBase List >>1-Methyl-2-pyrrolidineethanol

1-Methyl-2-pyrrolidineethanol

CAS No.
67004-64-2
Chemical Name:
1-Methyl-2-pyrrolidineethanol
Synonyms
2-(1-methylpyrrolidin-2-yl)ethan-1-ol;2-(2-HYDROXYETHYL)-1-METHYLPYRROLIDINE;2-(2-HYDROXYETHYL)-N-METHYL-PYRROLIDINE;Clemastine Impurity 4;Clemastine Impurity D;Clemastine EP Impurity D;HYDROXYETHYLMETHYLPYRROLIDINE;1-Methylpyrrolidine-2-Ethanol;1-METHYL-2-PYRROLIDINEETHANOL;N-METHYL-2-PYRROLIDINEETHANOL
CBNumber:
CB4441351
Molecular Formula:
C7H15NO
Molecular Weight:
129.2
MDL Number:
MFCD00003174
MOL File:
67004-64-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:16:48
Product description Number Pack Size Price
2-(2-Hydroxyethyl)-1-methylpyrrolidine British Pharmacopoeia (BP) Reference Standard BP526 100MG $251
1-Methyl-2-pyrrolidine ethanol 98% 139513 5g $62.9
1-Methyl-2-pyrrolidine ethanol 98% 139513 25g $261
2-(2-Hydroxyethyl)-1-methylpyrrolidine >98.0%(GC)(T) M0908 10mL $76
2-(2-Hydroxyethyl)-1-methylpyrrolidine >98.0%(GC)(T) M0908 25mL $145
More product size

1-Methyl-2-pyrrolidineethanol Properties

Boiling point 110-112 °C14 mm Hg(lit.)
Density 0.951 g/mL at 25 °C(lit.)
refractive index n20/D 1.4713(lit.)
Flash point 184 °F
storage temp. 2-8°C(protect from light)
pka 15.03±0.10(Predicted)
form clear liquid
color Colorless to Red to Green
InChI InChI=1S/C7H15NO/c1-8-5-2-3-7(8)4-6-9/h7,9H,2-6H2,1H3
InChIKey FYVMBPXFPFAECB-UHFFFAOYSA-N
SMILES N1(C)CCCC1CCO
CAS DataBase Reference 67004-64-2(CAS DataBase Reference)
FDA UNII 46PY6SCZ39
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H315-H318
Precautionary statements  P264-P270-P280-P301+P312-P302+P352-P305+P351+P338
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xn
Risk Statements  22-38-41
Safety Statements  26-39
WGK Germany  3
HS Code  29339900
Storage Class 10 - Combustible liquids
Hazard Classifications Acute Tox. 4 Oral
Eye Dam. 1
Skin Irrit. 2
NFPA 704
2
3 0

1-Methyl-2-pyrrolidineethanol price More Price(64)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich BP526 2-(2-Hydroxyethyl)-1-methylpyrrolidine British Pharmacopoeia (BP) Reference Standard 67004-64-2 100MG $251 2026-04-30 Buy
Sigma-Aldrich 139513 1-Methyl-2-pyrrolidine ethanol 98% 67004-64-2 5g $62.9 2026-04-30 Buy
Sigma-Aldrich 139513 1-Methyl-2-pyrrolidine ethanol 98% 67004-64-2 25g $261 2023-01-07 Buy
TCI Chemical M0908 2-(2-Hydroxyethyl)-1-methylpyrrolidine >98.0%(GC)(T) 67004-64-2 10mL $76 2026-04-30 Buy
TCI Chemical M0908 2-(2-Hydroxyethyl)-1-methylpyrrolidine >98.0%(GC)(T) 67004-64-2 25mL $145 2026-04-30 Buy
Product number Packaging Price Buy
BP526 100MG $251 Buy
139513 5g $62.9 Buy
139513 25g $261 Buy
M0908 10mL $76 Buy
M0908 25mL $145 Buy

1-Methyl-2-pyrrolidineethanol Chemical Properties,Uses,Production

Chemical Properties

clear yellow to brownish liquid

Uses

2-(2-Hydroxyethyl)-1-methylpyrrolidine BP Reference standard, intended for use in laboratory tests only as specifically prescribed in the British Pharmacopoeia.
Also used in monographs such as:

  • Clemastine Tablets

    • General Description

    1-Methyl-2-pyrrolidine ethanol is an important pharmaceutical intermediate.

    Synthesis

    methyl 1-methylpyrrolidine-2-acetate

    51856-76-9

    1-Methyl-2-pyrrolidineethanol

    67004-64-2

    The general procedure for the synthesis of N-methyl-2-(2-hydroxyethyl)pyrrolidine from methyl 1-methylpyrrolidine-2-acetate was as follows: 5.0 g of intermediate 2 was weighed and placed in a round-bottomed flask, and 50 mL of methanol was added to dissolve it. Subsequently, 2.0 g NaBH4 was slowly added to the reaction system, heated to reflux and kept for 12 hours. After completion of the reaction, methanol was removed by rotary evaporation under reduced pressure. To the residue, 50 mL of ethyl acetate (EA) and 50 mL of water were added, transferred to a dispensing funnel, and the organic layer was separated by sufficiently shaking and standing to separate the layers. The organic layer was washed with saturated saline and dried with anhydrous sodium sulfate. After filtration to remove the desiccant, the organic solvent was concentrated under reduced pressure to obtain 3.5 g of the target product N-methyl-2-(2-hydroxyethyl)pyrrolidine in the form of a colorless liquid.

    References

    [1] Patent: KR2016/141950, 2016, A. Location in patent: Paragraph 0037

    1-Methyl-2-pyrrolidineethanol Preparation Products And Raw materials

    Raw materials

    Preparation Products

    Global( 246)Suppliers
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    TOKYO CHEMICAL INDUSTRY CO., LTD.
    		03-36680489 Sales-JP@TCIchemicals.com Japan 28387 80
    Hebei Chuanghai Biotechnology Co., Ltd     		+86-17732866630 mina@chuanghaibio.com China 18126 58
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    Chongqing Soarwin Technology Co., Ltd     		+86-15790943001 crystal@sorawin.cn China 421 58
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    ATK CHEMICAL COMPANY LIMITED     		+undefined-21-51877795 ivan@atkchemical.com China 33024 60
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    Jinan Finer Chemical Co., Ltd     		+86-531-88989536 +86-15508631887 sales@finerchem.com China 2950 58
    Accela ChemBio Inc.     		+1-858-6993322 +86-18019713315 info@accelachem.com United States 21193 58

    View Lastest Price from 1-Methyl-2-pyrrolidineethanol manufacturers

    Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
    1-Methyl-2-pyrrolidineethanol pictures 2025-08-20 1-Methyl-2-pyrrolidineethanol
    67004-64-2
    		 1kg 99.99% 20 tons Chongqing Soarwin Technology Co., Ltd
    1-Methyl-2-pyrrolidineethanol pictures 2025-06-27 1-Methyl-2-pyrrolidineethanol
    67004-64-2
    		 1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
    1-Methyl-2-pyrrolidineethanol pictures 2025-04-04 1-Methyl-2-pyrrolidineethanol
    67004-64-2
    		 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
    N-METHYL-2-PYRROLIDINEETHANOL 1-METHYL-2-PYRROLIDINEETHANOL 2-PYRROLIDINEETHANOL, 1-METHYL- N-Methyl-2-hydroxy-ethylpyrrolidine N-Methyl-2-ethanol-pyrrolidine 2-(1-methyl-2-pyrrolidine)ethanol 1-Methylpyrrolidine-2-Ethanol HYDROXYETHYLMETHYLPYRROLIDINE N-methyl-2-(2-hydroxylethyl)pyrrolidine N-Methyl-2-(2-Hydroxyethyl)-pyrrolidne 2-(1-Methylpyrrolidin-2-yl)ethanol 1-Methyl-2-pyrrolidineethanol,98% 2-(2-Hydroxyethyl)-N-Methyl-Py N-Methyl-2-(2-hydroxyethyl)pyrrolidine 1-Methyl-2-pyrrolidineethanol, 98% 5GR 1-Methyl-2-pyrrolidine ethanol 98% 2-(1-methyl-2-pyrrolidinyl)ethanol Clemastine Impurity 4(EP Impurity D) Clemastine EP Impurity D Clemastine Impurity 4 2-(2-Hydroxyethyl)-1-methylpyrrolidine> 1-Methyl-2-pyrrolidineethanol USP/EP/BP Clemastine Impurity D 2-(1-methylpyrrolidin-2-yl)ethan-1-ol 2-(2-HYDROXYETHYL)-1-METHYLPYRROLIDINE 2-(2-HYDROXYETHYL)-N-METHYL-PYRROLIDINE 67004-64-2 67004-62-2 Heterocyclic Building Blocks Pyrrolidines ALCOHOL Building Blocks Building Blocks Heterocyclic Building Blocks Pyrrolidines
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