Description
2-Chloro-3′,4′-dihydroxyacetophenone (CAS No. 99-40-1) is a high-purity organic compound with the molecular formula C8H7ClO3. This fine chemical is widely utilized in pharmaceutical research, organic synthesis, and biochemical applications due to its unique structural properties. The compound features a chloroacetyl group adjacent to a dihydroxyphenyl ring, making it a valuable intermediate for the synthesis of catechol derivatives and bioactive molecules. It is available in various purity grades, including ≥97%, and is supplied in stable crystalline form under controlled conditions to ensure optimal performance in sensitive applications. Suitable for HPLC, NMR, and LC-MS analysis, this product meets stringent quality standards for laboratory and industrial use.
Properties
- CAS Number: 99-40-1
- Complexity: 172
- IUPAC Name: 2-chloro-1-(3,4-dihydroxyphenyl)ethanone
- InChI: InChI=1S/C8H7ClO3/c9-4-8(12)5-1-2-6(10)7(11)3-5/h1-3,10-11H,4H2
- InChI Key: LWTJEJCZJFZKEL-UHFFFAOYSA-N
- Exact Mass: 186.0083718
- Molecular Formula: C8H7ClO3
- Molecular Weight: 186.59
- SMILES: C1=CC(=C(C=C1C(=O)CCl)O)O
- Topological: 57.5
- Monoisotopic Mass: 186.0083718
- Synonyms: 2-Chloro-3′,4′-dihydroxyacetophenone, 2-Chloro-1-(3,4-dihydroxyphenyl)ethanone, 4-(Chloroacetyl)catechol, UNII-FN6949L56Q, chloromethyl 3,4-dihydroxyphenyl ketone, CHEBI:51844, FN6949L56Q, EINECS 202-754-8, NSC-13905, NSC-17869, .alpha.-Chloro-3,4-dihydroxyacetophenone, AI3-25258, DTXSID90243929, NSC 13905, NSC 17869, acetophenone, alpha-chloro-3,4-dihydroxy-, 1-CHLOROACETYL-3,4-DIHYDROXYBENZENE, ACETOPHENONE, .ALPHA.-CHLORO-3,4-DIHYDROXY-, 2-CHLORO-1-(3,4-DIHYDROXYPHENYL)-1-ETHANONE, NORADRENALINE TARTRATE IMPURITY E [EP IMPURITY], NORADRENALINE TARTRATE IMPURITY E (EP IMPURITY), DTXCID70166420, alpha-Chloro-3,4-dihydroxyacetophenone, inchi=1/c8h7clo3/c9-4-8(12)5-1-2-6(10)7(11)3-5/h1-3,10-11h,4h, lwtjejczjfzkel-uhfffaoysa-n, 99-40-1, 3,4-Dihydroxyphenacyl chloride, Ethanone, 2-chloro-1-(3,4-dihydroxyphenyl)-, MFCD00002200, 3′,4′-Dihydroxy-2-chloroacetophenone, CHEMBL105609, .alpha.-Chloro-3′,4′-dihydroxyacetophenone, Acetophenone, 2-chloro-3′,4′-dihydroxy-, 1-(3,4-dihydroxyphenyl)-2-chloroethan-1-one, NSC17869, 2-Chloro3′,4′-Ddihydroxyacetophenone, 3,4-Dihydroxy-alpha-chloroacetophenone, 4-chloroacetylcatechol, 4-chloroacetyl-catechol, Noradrenaline impurity E, 4-(chloroacetyl)-catechol, 2-chloro-1-(3,4-dihydroxyphenyl)ethan-1-one, 4-(Chloroacetyl)pyrocatechol, SCHEMBL43409, 4-(2-chloroacetyl)pyrocatechol, SCHEMBL8673582, ALBB-019715, NSC13905, 2-chloro-3’4′-dihydroxyacetophenone, BBL011663, BDBM50119688, SBB063277, STK077070, 2-chloro-3’4′-dihydroxy-acetophenone, AKOS000120697, 4-(Chloroacetyl)-1,2-dihydroxybenzene, AC-7480, CS-W016884, FC19955, 2-chloro-3”,4”-dihydroxyacetophenone, NCGC00184201-01, NCGC00184201-02, NCGC00184201-03, alpha-Chloro-3′,4′-dihydroxyacetophenone, AS-18630, PD140509, SY049311, UPCMLD0ENAT0516-6643:001, NS00041156, ST45026894, 2-Chloro-1-(3,4-dihydroxyphenyl)ethanone #, 2-Chloro-3′,4′-dihydroxyacetophenone, 97%, EN300-17297, O10915, AT-051/43421153, Q27122818, Z56912624, F0001-2334, Noradrenaline impurity E, European Pharmacopoeia (EP) Reference Standard
2-Chloro-3′,4′-dihydroxyacetophenone serves as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of catecholamine analogs and enzyme inhibitors. It is also employed in biochemical research as a precursor for fluorophores and crosslinking agents. Additionally, this compound is used in organic synthesis to introduce chloroacetyl functionalities into complex molecules for further derivatization.
Safety and Hazards
GHS Hazard Statements
- H301 (12.5%): Toxic if swallowed [Danger Acute toxicity, oral]
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335 (98.4%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H412 (12.5%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Precautionary Statements
- P261, P264, P264+P265, P270, P271, P273, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501
Hazard Classes and Categories
- Acute Tox. 3 (12.5%)
- Skin Irrit. 2 (100%)
- Eye Irrit. 2 (100%)
- STOT SE 3 (98.4%)
- Aquatic Chronic 3 (12.5%)
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