2-Chloroaniline (o-Chloroaniline), CAS 95-51-2, is an aromatic amine used in chemical synthesis as an intermediate. For procurement review, confirm the required positional-isomer and impurity limits for the intended synthesis route, packaging, and applicable safety documentation.
2-Chloroaniline (o-Chloroaniline) CAS 95-51-2
- CAS: 95-51-2
- Synonyms: 2-Chloroaniline; o-Chloroaniline; 1-Amino-2-chlorobenzene; 2-Chlorobenzenamine
- Einecs: 202-426-4
- Molecular Formula: C₆H₆ClN
- Grade: Confirm current product specification
- Package: Confirm packaging for the offered form
Product Description
Product name: 2-Chloroaniline (o-Chloroaniline)
CAS number: 95-51-2
Molecular formula: C₆H₆ClN
Molecular weight: 127.57 g/mol
EC number: 202-426-4
Other names: 2-Chloroaniline; o-Chloroaniline; 1-Amino-2-chlorobenzene; 2-Chlorobenzenamine
Chemical class: an aromatic amine
Identity check: 2-Chloroaniline is the ortho positional isomer and is distinct from 3- and 4-chloroaniline.
Technical context: chemical synthesis as an intermediate
RFQ information: Before an RFQ, confirm the required positional-isomer and impurity limits for the intended synthesis route.

Offered form: Not specified; confirm the actual offered form.
FAQ - Technical & Supply Chain
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Q:
Are 2-Chloroaniline and o-Chloroaniline the same substance?
A: Yes. Both names identify the ortho isomer, CAS 95-51-2, formula C₆H₆ClN. They are not interchangeable with 3-Chloroaniline or 4-Chloroaniline. Confirm the position-specific name, CAS number and chromatographic identity because a generic chloroaniline description does not establish the required isomer. -
Q:
Which specifications matter when purchasing 2-Chloroaniline?
A: Agree GC assay, 3- and 4-Chloroaniline limits, residual Aniline and Dichloroanilines, water, color, density or refractive index and distillation range where applicable. State the impurity reporting threshold and method. Review the batch chromatogram or COA rather than relying on total purity without isomer detail. -
Q:
What should be confirmed for bulk o-Chloroaniline handling?
A: Specify a compatible closed drum, IBC or tank system, seal materials, transfer connection, loading temperature and protection from contamination. The receiving site should approve the current SDS, toxic-liquid transport classification, ventilation, exposure controls and spill containment before dispatch. Confirm destination-market inventory or restriction documents where required.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
COA, TDS, SDS/MSDS and packing details are available on request.
Quotation
Send the CAS number, grade, quantity, packing preference and destination.
Sample & Supply
Support is available for samples, trial orders, bulk and repeat supply.
Storage & Shipping
Product-specific conditions are confirmed before order.







