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1,4-Piperazinediethanol

1,4-Piperazinediethanol structure

CAS No:
122-96-3
Formula:
C8H18N2O2
Chemical Name:
1,4-Piperazinediethanol
Synonyms:
1,4-Piperazinediethanol;N,N′-Bis(β-hydroxyethyl)piperazine;1,4-Bis(2-hydroxyethyl)piperazine;N,N′-Di(2-hydroxyethyl)piperazine;1,4-Di(2-hydroxyethyl)piperazine;1,4-Bis(β-hydroxyethyl)piperazine;N,N′-Bis(2-hydroxyethyl)piperazine;NSC 26892;NSC 31268;NSC 36645;1,4-Bis(hydroxyethyl)piperazine;2,2′-(Piperazine-1,4-diyl)diethanol;2-[4-(2-Hydroxyethyl)piperazin-1-yl]ethan-1-ol;2-[4-(2-Hydroxyethyl)piperazin-1-yl]ethanol
Categories:
Pharmaceutical Intermediates > Bulk Drug Intermediates

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Description

white crystalline powder

Liquid

1,4-Piperazinediethanol Basic Attributes

Molecular Weight：

174.24

Exact Mass：

174.24

EC Number：

204-586-0

UNII：

EQ349PKX8Y

NSC Number：

36645|31268|26892

DSSTox ID：

DTXSID3029158

Characteristics

PSA：

46.9

XLogP3：

-1.3

Appearance：

Liquid

Density：

1.097

Melting Point：

134-135 °C

Boiling Point：

215-220 °C @ Press: 50 Torr

Flash Point：

166℃

Refractive Index：

1.4540 (estimate)

Water Solubility：

Soluble in water.

Vapor Pressure：

7.58E-05mmHg at 25°C

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38

safety instructions：

37/39-26

RTECS Number：

TL3675000

Marks：

Precautionary statement(s)：

P210, P233, P240, P241, P242, P243, P260, P261, P264, P271, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P332+P313, P337+P313, P362, P363, P370+P378, P403+P233, P403+P235, P405, P501

Hazard Statements：

H226

GHS Classification：

Not Classified

1,4-Piperazinediethanol Use and Manufacturing

Methods of Manufacturing

Preparation of 1, 4-bis(hydroxyethyl)piperazine from diethanolamine (no solvent)was carried out under the conditions of in the same apparatus. 100 g of diethanolamine (II) and 10 g of catalyst A were used. Gas chromatographic analysis (GC column: 30 m RTX Amin) indicated, at quantitative diethanolamine conversion, that the reaction output comprised 79percent of 1, 4-bis(hydroxyethyl)piperazine.Under a nitrogen atmosphere, the reactor 100 ml, piperazine 8.6 g (0.1 mol) g of methanol 10.4 g, was added while stirring 35percent hydrochloric acid 10.4 g (0.1 mol), internal temperature It was referred to as 80 ° C. There, while maintaining the internal temperature below 80 ° C, 2- bromoethanol 8.7g of (0.07 mol) was added dropwise over 0.5 hours and then further continued for 2 hours and stirring remains the same temperature conditions. Since the reaction liquid was 4.2 where pH was measured, and added of 25percent NaOH aqueous solution 7.6 g, and the pH was adjusted to 8.5. Furthermore, maintaining the internal temperature at 80 ° C, stirring was continued for 2 hours to obtain a reaction solution 36.2g of colorless and transparent. Results The product was analyzed by gas chromatography, is 86.2percent for a yield of N-(2-hydroxyethyl) piperazine, the selectivity, N-(2-hydroxyethyl) piperazine, 91.9percent, N, N'- bis (2-hydroxyethyl) piperazine is 6.7percent, unknown content was 1.4percent. Along with other examples showing the results of Example 8 shown in Table 1.

Uses

Processing aids, specific to petroleum production

Manufacturing Info：

Oil and gas drilling, extraction, and support activities|1,4-Piperazinediethanol: ACTIVE

Computed Properties

Molecular Weight:174.24
XLogP3:-1.3
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:4
Exact Mass:174.136827821
Monoisotopic Mass:174.136827821
Topological Polar Surface Area:46.9
Heavy Atom Count:12
Complexity:99.6
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Diethanolamine

Sodium hydroxide

Ethanolamine

Ethyl acetate

SODIUM SULFATE

Potassium carbonate

Ethanol

Ethylene oxide

Hydrochloric acid

Sodium sulfate

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CAS No.: 122-96-3

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