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Beilstein Reference

21,369

112448

21, 380

Assay Percent Range

99%

98%

98.5 to 101.5% (on dry substance) (Iodometry)

Boiling Point

209°C to 211°C

285.0°C to 290.0°C

CAS Registry Number 1

123-56-8

102767-28-2

756525-90-3

128-53-0

128-08-5

622405-78-1

80307-12-6

CAS RN 1 Max Percentage

100.0

Chemical Name or Material

N-Succinimidyl 4-Maleimidobutyrate [Cross-linking Reagent]

N-Ethylmaleimide

Methyl-PEG8-NHS Ester

N-Bromosuccinimide

Levetiracetam

Succinimide

Methyl-PEG4-NHSEster

CAS RN 1 Min Percentage

98.5

ChEBI

CHEBI:44485

CHEBI:53174

CHEBI:6437

CHEBI:9307

Color

Colorless

White to Yellow

Brown to White

Undesignated

Cream to White

White-Yellow

DOT Information

Transport Hazard Class: 6.1; Packing Group: II; Proper Shipping Name: TOXIC SOLIDS, CORROSIVE, ORGANIC, N.O.S.

Flash Point

73°C (163°F)

180°C

201°C

Fieser Reference

01,78; 02,40; 03,34; 04,49; 05,65; 06,74; 07,37; 08,54; 09,70; 10,57; 11,79; 12,79; 13,41; 14,57; 15,50; 16,49

Formula Weight

99.08

509.55

EINECS Number

204-892-4

204-877-2

(5)-0121

204-635-6

Formula Weight

177.99

333.34

280.24

125.13

170.21

Health Hazard 3

GHS P Statement
Wear protective gloves/protective clothing/eye protection/face protection.
Keep away from heat/sparks/open flames/hot surfaces.
- No smoking.
In case of major fire and large quantities: Evacuate area.
Fight fire rem

GHS P Statement:
IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
Wear eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

GHS P Statement
IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses,if present and easy to do.
Continue rinsing.
Avoid breathing dust/fume/gas/mist/vapors/spray.
IF ON SKIN: Wash with plenty of soap a

P260-P264b-P270-P271-P272-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P333+P313-P363-P501c

Health Hazard 1

GHS Signal Word: Warning

Danger

GHS Signal Word: Danger

H300-H311-H314-H317-H335

Health Hazard 2

GHS H Statement
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.

GHS H Statement
May intensify fire; oxidizer.
May be corrosive to metals.

GHS H Statement
H300-H311-H314-H318-H317;
Fatal if swallowed.
Toxic in contact with skin.
Causes severe skin burns and eye damage.
Causes serious eye damage.
May cause an allergic skin reaction.

GHS H Statement:
Causes serious eye damage.
Harmful if swallowed.
Causes severe skin burns and eye damage.

InChIKey

MAYFFZZPEREGBQ-UHFFFAOYSA-N

IBZNTYBFTKFSMU-UHFFFAOYSA-N

HDFGOPSGAURCEO-UHFFFAOYSA-N

PCLIMKBDDGJMGD-UHFFFAOYSA-N

PVGATNRYUYNBHO-UHFFFAOYSA-N

HPHUVLMMVZITSG-LURJTMIESA-N

KZNICNPSHKQLFF-UHFFFAOYSA-N

Merck Index Reference

14,3822

15, 1448

15,9001

Infrared Spectrum

Authentic

Loss on Drying

1% max.

Melting Point

117.0°C

176°C

175.0°C to 178.0°C

43°C to 46°C

121.0°C to 126.0°C

130°C

MFCD Number

MFCD00036817

MFCD00005495

MFCD00005509

MFCD13184969

MFCD00005510

Molecular Formula

C8H14N2O2

C4H4BrNO2

C4H5NO2

C12H12N2O6

C14H23NO8

C6H7NO2

C22H39NO12

Name Note

98%

Packaging

Glass Bottle

Physical Form

Clear Liquid at 20°C

Powder or Flakes

Clear Liquid at 20°C

Crystalline Powder

Crystalline

Crystal-Powder at 20°C

IUPAC Name

(2,5-dioxopyrrolidin-1-yl) 4-(2,5-dioxopyrrol-1-yl)butanoate

1-bromopyrrolidine-2,5-dione

pyrrolidine-2,5-dione

(2,5-dioxopyrrolidin-1-yl) 3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]propanoate

(2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate

(2S)-2-(2-oxopyrrolidin-1-yl)butanamide

1-ethylpyrrole-2,5-dione

SMILES

C1CC(=O)N(C1=O)Br

C1CC(=O)NC1=O

CCN1C(=O)C=CC1=O

COCCOCCOCCOCCC(=O)ON1C(=O)CCC1=O

COCCOCCOCCOCCOCCOCCOCCOCCC(=O)ON1C(=O)CCC1=O

CCC(C(=O)N)N1CCCC1=O

C1CC(=O)N(C1=O)OC(=O)CCCN2C(=O)C=CC2=O

Molecular Weight

177.985

333.337

170.21

177.99

280.236

99.08

Recommended Storage

Ambient temperatures

Freezer (-20 °C)

Refrigerator

Freezer

Solubility Information

Solubility in water: 14.8g/L (20°C). Other solubilities: 3.10g/100g glacial acetic acid(25°C),g/100g solvent (25°C):,tert. butanol:0.73- aceton:14.40,carbone tetrachloride:0.02- hexane:0.006,benzene:0.5

Solubility in water: 240g/L (20°C). Other solubilities: 1g/24 mL alcohol - 1g/5 mL alcohol (60°C), insoluble in ether and chloroform

Soluble in ethanol,water,chloroform,methanol and toluene.

Solubility in water: 104 g/100 mL. Other solubilities: soluble in chloroform, methanol, acetone

Percent Purity

98.5 to 101.5% (on dry substance)

>=99%

>=98.0% (HPLC,N)

98%

>=98.0% (T)

99%

Pub Chem CID

4362

44622261

5284583

67184

133440

11439

51340981

Odor

Pungent

RTECS Number

WN2200000

UX9625000

Sensitivity

Light Sensitive

Quantity

25g

25mg

100g

500g

Molecular Weight

509.549

125.127

Synonym

2,5-pyrrolidinedione

levetiracetam

N-Succinimidyl 4,7,10,13,16,19,22,25-Octaoxahexacosanoate, 4,7,10,13,16,19,22,25-Octaoxahexacosanoic Acid N-Succinimidyl Ester, mPEG8-NHS Ester

succinbromimide

n-bromo succinimide

4-maleimidobutyric acid n-hydroxysuccinimide ester

ethylmaleimide

N-Succinimidyl 4,7,10,13-Tetraoxatetradecanoate, 4,7,10,13-Tetraoxatetradecanoic Acid N-Succinimidyl Ester, mPEG4-NHS Ester

TSCA

Yes

UN Number

UN2928

3261

Specific Rotation

-76

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