Molekula
N-Chlorosuccinimide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
N-Chlorosuccinimide is a white crystalline solid used as a selective chlorinating agent in organic synthesis, particularly for halogenation of aromatic compounds, and as a disinfectant and bleaching agent. It is also employed in water treatment and as a reagent in analytical chemistry. CAS 128-09-6, molecular formula C4H4ClNO2, molecular weight 133.53. Store at ambient conditions. Signal word: Danger. Molekula supplies N-Chlorosuccinimide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
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100 g — £29.50 per pack ex VAT · £35.40 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White to off white crystal powder |
| Identification | Conforms to reference |
| Assay | ≥98.0% |
| Active Chlorine | ≥25.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 110 °C |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Orthorhombic crystals |
| Odour | Slight chlorine odor |
| Melting Point | 150 °C |
| Density | 1.65 g/cm³ at 25 °C |
| Water Solubility | 14 g/L at 25 °C |
| Solubility (other solvents) | 1 g dissolves in about 150 mL alcohol, about 50 mL benzene; sparingly soluble in ether, chloroform, carbon tetrachloride |
| Vapour Pressure | 0.00768 mmHg |
Source: PubChem CID 31398 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 35585453 |
| CAS Number | 128-09-6 |
| IUPAC Name | 1-chloropyrrolidine-2,5-dione |
| EC Number | 204-878-8 |
| Molecular Formula | C4H4ClNO2 |
| Molecular Weight | 133.53 |
| Exact Mass | 132.9931 |
| SMILES | C1CC(=O)N(C1=O)Cl |
| InChIKey | JRNVZBWKYDBUCA-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H4ClNO2/c5-6-3(7)1-2-4(6)8/h1-2H2 |
| PubChem CID | 31398 |
| UN Number | UN3261 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29213050 |
| Tariff Code | 2929909090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H290 May be corrosive to metals
- H302 Harmful if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P406 Store in a corrosive resistant container with a resistant inner liner
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-Chloro-2,5-pyrrolidinedione
- 1-chloropyrrolidine-2,5-dione
- 2,5-Pyrrolidinedione, 1-chloro-
- Chlorosuccinimide
- NCS
- Succinchlorimide
- Succinic acid, imide, N-chloro-
- Succinic N-chloroimide
- Succinimide, N-chloro-
- Succinochlorimide
Frequently asked questions
What is N-Chlorosuccinimide (NCS) commonly used for?
N-Chlorosuccinimide is primarily used as a chlorinating agent in organic synthesis, including the preparation of chlorohydrins, epoxidation reactions, and as a mild oxidant or reagent in pharmaceutical and agrochemical manufacturing.
What is the molecular formula and molecular weight of N-Chlorosuccinimide?
The molecular formula is **C₄H₄ClNO₂**, and the molecular weight is **133.53 g/mol**.
What safety classification does N-Chlorosuccinimide fall under?
N-Chlorosuccinimide is classified with the **signal word 'Danger'** due to its hazardous properties, including skin corrosion and serious eye damage.
How should N-Chlorosuccinimide be stored?
Store N-Chlorosuccinimide at **ambient temperature** in a cool, dry place, away from incompatible substances like strong oxidizers, reducing agents, or metals.
Does Molekula supply N-Chlorosuccinimide in bulk quantities?
Yes, Molekula can supply N-Chlorosuccinimide in **bulk quantities** upon request, depending on availability and customer requirements.
What documentation is provided with an order of N-Chlorosuccinimide?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and **batch-specific documentation** to ensure compliance and traceability.
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