(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate

Modify Date: 2025-08-20 17:27:37

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure
(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate structure
 Common Name (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate
CAS Number 51693-17-5 Molecular Weight 269.317
Density 1.3±0.1 g/cm3 Boiling Point 504.8±23.0 °C at 760 mmHg
Molecular Formula C12H15NO4S Melting Point 124-128ºC(lit.)
MSDS Chinese USA Flash Point 259.1±22.6 °C
Symbol GHS07
GHS07		 Signal Word Warning

 Names

Name (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.3±0.1 g/cm3
Boiling Point 504.8±23.0 °C at 760 mmHg
Melting Point 124-128ºC(lit.)
Molecular Formula C12H15NO4S
Molecular Weight 269.317
Flash Point 259.1±22.6 °C
Exact Mass 269.072174
PSA 80.85000
LogP -0.47
Vapour Pressure 0.0±1.3 mmHg at 25°C
Index of Refraction 1.545

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases 26-36
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2933790090

 Synthetic Route

Tosyl chloride structure

Tosyl chloride

CAS#:98-59-9

(5S)-5-(Hydroxymethyl)pyrrolidin-2-on structure

(5S)-5-(Hydroxy...

CAS#:17342-08-4

~96%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Hjelmgaard, Thomas; Sotofte, Inger; Tanner, David Journal of Organic Chemistry, 2005 , vol. 70, # 14 p. 5688 - 5697
Tetrabutylammonium sulfate structure

Tetrabutylammon...

CAS#:2472-88-0

Tosyl chloride structure

Tosyl chloride

CAS#:98-59-9

H-Pyr-OEt structure

H-Pyr-OEt

CAS#:7149-65-7

~%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Merrell Dow Pharmaceuticals Inc. Patent: US4621145 A1, 1986 ;
L-Pyroglutamicacid structure

L-Pyroglutamicacid

CAS#:98-79-3

~%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Aupoix, Audrey; Bournaud, Chloee; Vo-Thanh, Giang European Journal of Organic Chemistry, 2011 , # 15 p. 2772 - 2776
Methyl L-Pyroglutamate structure

Methyl L-Pyrogl...

CAS#:4931-66-2

~%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Kawasoko, Cristiane Y.; Foletto, Patricia; Rodrigues, Oscar E. D.; Dornelles, Luciano; Schwab, Ricardo S.; Braga, Antonio L. Organic and Biomolecular Chemistry, 2013 , vol. 11, # 31 p. 5173 - 5183
H-Pyr-OEt structure

H-Pyr-OEt

CAS#:7149-65-7

~%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Williams, Glynn D.; Wade, Charles E.; Clarkson, Guy J.; Wills, Martin Tetrahedron Asymmetry, 2007 , vol. 18, # 5 p. 664 - 670
L-glutamic acid structure

L-glutamic acid

CAS#:56-86-0

~%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Kawasoko, Cristiane Y.; Foletto, Patricia; Rodrigues, Oscar E. D.; Dornelles, Luciano; Schwab, Ricardo S.; Braga, Antonio L. Organic and Biomolecular Chemistry, 2013 , vol. 11, # 31 p. 5173 - 5183
Tosyl chloride structure

Tosyl chloride

CAS#:98-59-9

H-Pyr-OEt structure

H-Pyr-OEt

CAS#:7149-65-7

~%

(S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate Structure

(S)-(+)-5-(Hydr...

CAS#:51693-17-5

Literature: Chen, Ping; Suh, Dong-Jin; Smith, Michael B. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1995 , # 10 p. 1317 - 1322

 Customs

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

 Articles2

More Articles

J. Org. Chem. 57 , 2158, (1992)

Tetrahedron 48 , 2143, (1992)

 Synonyms

(+)-(S)-5-{[(4-methylphenyl)sulfonyloxy]methyl}pyrrolidin-2-one
(S)-5-HYDROXYMETHYL-2-PYRROLIDINONE P-TOLUENESULFONATE
toluene-4-sulfonic acid [(S)-5-oxopyrrolidin-2-yl]methyl ester
(S)-toluene-4-sulfonic acid 5-oxo-pyrrolidin-2-ylmethyl ester
2-Pyrrolidinone, 5-[[[(4-methylphenyl)sulfonyl]oxy]methyl]-
(R)-(5-OXOPYRROLIDIN-2-YL)METHYL 4-METHYLBENZENESULFONATE
(S)-5-tosyloxymethyl-2-pyrrolidinone
(-)-L-PYROGLUTAMOL P-TOLUENESULFONATE
MFCD00274229
(5-Oxo-2-pyrrolidinyl)methyl 4-methylbenzenesulfonate
(S)-(+)-5-(hydroxymethyl)-2-pyrrolidinone p-toluensulfonate
(S)-(+)-5-(hydroxymethyl)-2-pyrrolidinone P-tolu
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Chemsrc provides CAS#:51693-17-5 MSDS, density, melting point, boiling point, structure, etc. Its name is (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate>> amp version: (S)-(+)-5-(Hydroxymethyl)-2-pyrrolidinone p-toluenesulfonate

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