4-CHLORO-2-BUTYN-1-OL

Modify Date: 2025-08-25 21:09:30

4-CHLORO-2-BUTYN-1-OL Structure
4-CHLORO-2-BUTYN-1-OL structure
 Common Name 4-CHLORO-2-BUTYN-1-OL
CAS Number 13280-07-4 Molecular Weight 104.53500
Density 1.213 Boiling Point 199.2ºC at 760mmHg
Molecular Formula C4H5ClO Melting Point N/A
MSDS N/A Flash Point 74.3ºC

 Names

Name 4-chlorobut-2-yn-1-ol
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.213
Boiling Point 199.2ºC at 760mmHg
Molecular Formula C4H5ClO
Molecular Weight 104.53500
Flash Point 74.3ºC
Exact Mass 104.00300
PSA 20.23000
LogP 0.22090
Vapour Pressure 0.0866mmHg at 25°C
Index of Refraction 1.5004

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
ES0725000
CHEMICAL NAME :
2-Butyn-1-ol, 4-chloro-
CAS REGISTRY NUMBER :
13280-07-4
BEILSTEIN REFERENCE NO. :
1098382
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C4-H5-Cl-O
MOLECULAR WEIGHT :
104.54
WISWESSER LINE NOTATION :
Q2UU2G

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
56 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#02978

 Safety Information

Hazard Codes Xn
Risk Phrases R10;R23/24/25;R34
Safety Phrases S23-S26-S36/37/39-S45
RIDADR UN 1987
Packaging Group II
HS Code 2905590090

 Synthetic Route

Formaldehyde structure

Formaldehyde

CAS#:50-00-0

3-Chloropropyne structure

3-Chloropropyne

CAS#:624-65-7

~76%

4-CHLORO-2-BUTYN-1-OL Structure

4-CHLORO-2-BUTY...

CAS#:13280-07-4

Literature: Trost, Barry M.; Rudd, Michael T. Journal of the American Chemical Society, 2005 , vol. 127, # 13 p. 4763 - 4776
2-Butine-1,4-diol structure

2-Butine-1,4-diol

CAS#:110-65-6

~66%

4-CHLORO-2-BUTYN-1-OL Structure

4-CHLORO-2-BUTY...

CAS#:13280-07-4

Literature: Whitfield, Frank B.; Freeman, Diana J.; Last, John H.; Bannister, Peter A.; Kennett, Bruce H. Australian Journal of Chemistry, 1982 , vol. 35, # 2 p. 373 - 384
2-Butine-1,4-diol structure

2-Butine-1,4-diol

CAS#:110-65-6

~54%

4-CHLORO-2-BUTYN-1-OL Structure

4-CHLORO-2-BUTY...

CAS#:13280-07-4

1,4-Dichlorbut-2-in structure

1,4-Dichlorbut-2-in

CAS#:821-10-3

Literature: Advanced Synthesis and Catalysis, , vol. 348, # 15 p. 2133 - 2147

 Customs

HS Code 2905590090
Summary 2905590090 other halogenated, sulphonated, nitrated or nitrosated derivatives of acyclic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

 Synonyms

1-chloro-4-hydroxy-2-butyne
4-Chloro-2-butyn-1-ol
4-hydroxybut-2-ynyl chloride
4-chloro-but-2-yn-1-ol
1-Chloro-2-butyn-4-ol
4-chloro-2-butyne-1-ol
1-Chloro-4-hydroxybut-2-yne
MFCD01656722
2-Butyn-1-ol,4-chloro
4-chlorobut-2-yne-1-ol
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