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CAS RN: 128-09-6 | Product Number: C0291


Purity: >98.0%(T)
  • NCS
6   ≥20 
3   ≥20 
2   Contact Us

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Product Number C0291
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__4H__4ClNO__2 = 133.53  
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Light Sensitive,Moisture Sensitive
CAS RN 128-09-6
Reaxys Registry Number 113915
PubChem Substance ID 87565445
SDBS (AIST Spectral DB) 3725
Merck Index (14) 2164
MDL Number


Appearance White to Almost white powder to crystal
Purity(Iodometric Titration) min. 98.0 %
Melting point 146.0 to 151.0 °C
Solubility in hot Methanol almost transparency
Properties (reference)
Melting Point 148 °C
Solubility in water Slightly soluble
Degree of solubility in water 14 g/l   25 °C
Solubility (soluble in) Acetone
Solubility (slightly sol. in) Benzene
Solubility (very slightly) Ether,Chloroform
Pictogram Pictogram Pictogram
Signal Word Danger
Hazard Statements H302 : Harmful if swallowed.
H314 : Causes severe skin burns and eye damage.
H290 : May be corrosive to metals.
Precautionary Statements P260 : Do not breathe dust or mist.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
Related Laws:
EC Number 204-878-8
RTECS# UY1013500
Transport Information:
UN Number UN3261
Class 8
Packing Group II
HS Number 2925199590
A Method for the Synthesis of Acyclic Haloamines with Ring Opening of Cyclic Amines

Experimental procedure:
To a vial, Piv-protected amine (1 eq.), AgNO3 (4 eq.), (NH4)2S2O8 (4 eq.), and NCS or NBS (4 eq.) is added and dissolved in 1:9 acetone:water (0.2 M). The resulting mixture is stirred at room temperature. After 30 minutes, the reaction mixture is partitioned between EtOAc and H2O and separated. The aqueous layer is extracted with EtOAc in triplicate and the combined organic layers concentrated in vacuo. The crude mixture is then purified over silica column eluting with an EtOAc:Hex. Mixture to afford the desired haloamine product.


Chlorination of (Hetero)arene Derivatives with DMSO Catalyst


PubMed Literature


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