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Merck

1.02497

NMP

for headspace gas chromatography SupraSolv®

Synonym(s):

1-Methyl-2-pyrrolidone, NMP, N-Methyl-2-pyrrolidone

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About This Item

CAS Number:
Molecular Weight:
99.13
UNSPSC Code:
41116105
EC Index Number:
212-828-1
NACRES:
NA.03
MDL number:
Assay:
≥99.8% (GC)
Technique(s):
GC-HS: suitable
Bp:
202 °C/1013 hPa
Vapor pressure:
0.32 hPa ( 20 °C)
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Product Name

1-Methyl-2-pyrrolidone, for headspace gas chromatography SupraSolv®

Quality Segment

agency

according to Ph. Eur., according to USP

vapor pressure

0.32 hPa ( 20 °C)

product line

SupraSolv®

assay

≥99.8% (GC)

form

liquid

autoignition temp.

245 °C

potency

3598 mg/kg LD50, oral (Rat), 8000 mg/kg LD50, skin (Rabbit)

expl. lim.

1.3-9.5 % (v/v)

technique(s)

GC-HS: suitable

impurities

≤0.05% water, ≤1 μg/g Every residual solvent of class 1 acc. to ICH, ≤10 μg/g Every residual solvent of class 2 acc. to ICH, ≤50 μg/g Every residual solvent of class 3 acc. to ICH

pH

8.5-10.0 (20 °C, 100 g/L in H2O)

bp

202 °C/1013 hPa

mp

-24 °C

transition temp

flash point 91 °C

solubility

1000 g/L

density

1.03 g/cm3 at 20 °C

storage temp.

2-30°C

SMILES string

N1(CCCC1=O)C

InChI

1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3

InChI key

SECXISVLQFMRJM-UHFFFAOYSA-N

General description

SupraSolv® for headspace gas chromatography (GC-HS) is a dedicated high-purity solvent grade specifically formulated to meet the stringent analytical demands of residual solvent determination in pharmaceutical active pharmaceutical ingredients (APIs), drug products, and other regulated matrices.In headspace GC, the solvent serves as the diluent medium in which the sample is dissolved prior to equilibrium partitioning of volatile analytes into the gaseous headspace phase for subsequent chromatographic injection. Consequently, the chemical purity of the solvent is of critical analytical importance: any residual volatile impurities intrinsic to the solvent matrix may co-elute with target analytes, generating false-positive signals or suppressing accurate quantification. SupraSolv® headspace solvents are therefore specifically developed and tested to contain extremely low concentrations of residual solvents, as mandated by regulatory guidelines.

Application

SupraSolv® headspace GC solvents are indispensable in pharmaceutical residual solvent testing, polymer and excipient quality control, food packaging safety assessment, and industrial material characterization — analytical contexts in which solvent purity is a direct regulatory and safety requirement, and where the integrity of trace-level volatile quantification is non-negotiable.

Features and Benefits

  • Regulatory compliance with ICH Q3C, Ph. Eur., and USP residual solvent guidelines, directly supporting pharmaceutical quality control workflows
  • Ultra-low intrinsic volatile impurity content, eliminating solvent-derived interferences in the headspace chromatogram and ensuring an unobstructed baseline
  • Batch-to-batch consistency, ensuring reproducibility across analytical campaigns

Analysis Note

SupraSolv® headspace solvents adhere to the residual solvent classification thresholds defined by the International Council for Harmonisation (ICH Q3C) and referenced in pharmacopoeial standards (Ph. Eur. and USP), with certified limits including:
  • Class 1 solvents (known human carcinogens / environmental hazards): ≤ 1 µg/g
  • Class 2 solvents (non-genotoxic, dose-dependent toxicants): ≤ 10 µg/g
  • Class 3 solvents (low toxic potential): ≤ 50 µg/gThese specifications are verified lot-by-lot via GC/HS analysis, providing robust certification of compliance and analytical traceability.

Other Notes

Explore various lab safety accessories and equipment for safe handling of solvents to increase your safety level from the first usage.

Legal Information

SUPRASOLV is a registered trademark of Merck KGaA, Darmstadt, Germany


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signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

wgk

WGK 1

flash_point_f

195.8 °F - Pensky-Martens closed cup

flash_point_c

91 °C - Pensky-Martens closed cup

pictograms

Health hazardExclamation mark

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

Class I Designated Chemical Substances

prtr

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl



Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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