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((short description|Chemical compound))
((refimprove|date=November 2018))
((Chembox
| Name = 2-Chlorobenzaldehyde
| ImageFile = 2-Chlorbenzaldehyd.svg
| ImageSize = 120px
| PIN = 2-Chlorobenzaldehyde
| OtherNames = ''o''-Chlorobenzaldehyde
| Section1 = ((Chembox Identifiers
| CASNo = 89-98-5
| ChemSpiderID = 21106014
| PubChem = 6996
| ChEMBL = 1547989
| EC_number = 201-956-3
| RTECS = CU5075000
| UNNumber = 3265
| UNII = QHR24X1LXK
| StdInChI=1S/C7H5ClO/c8-7-4-2-1-3-6(7)5-9/h1-5H
| StdInChIKey = FPYUJUBAXZAQNL-UHFFFAOYSA-N
| SMILES = c1ccc(c(c1)C=O)Cl
))
| Section2 = ((Chembox Properties
| C=7|H=5|Cl=1|O=1
| MeltingPtC = 9-12
| BoilingPtC = 209-215
| Density = 1.25
))
| Section7 = ((Chembox Hazards
| GHSPictograms = ((GHS05))((GHS07))
| GHSSignalWord = Danger
| HPhrases = ((H-phrases|290|302|314|317))
| PPhrases = ((P-phrases|234|260|261|264|270|272|280|301+312|301+330+331|302+352|303+361+353|304+340|305+351+338|310|321|330|333+313|363|390|404|405|501))
| FlashPtC = 87
| AutoignitionPtC = 385
))
))

'''2-Chlorobenzaldehyde''' ('''''o''-Chlorobenzaldehyde''') is a chlorinated derivative of [[benzaldehyde]] that is used in production of [[CS gas]]. It reacts with [[malononitrile]] to form CS.<ref>((cite web |title=Synthesis of ortho-chlorobenzalmalononitrile |url=https://patents.google.com/patent/US3963770A))</ref>

==References==
((reflist))

((DEFAULTSORT:Chlorobenzaldehyde, 2-))

[[Category:Benzaldehydes]]
[[Category:Chlorobenzene derivatives]]
((Organohalide-stub))

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