IUPAC Name: (2R)-but-3-yn-2-ol
The MF of (R)-(+)-3-BUTYN-2-OL(42969-65-3): C₄H₆O
The MW of (R)-(+)-3-BUTYN-2-OL(42969-65-3): 70.09
bp: 108 °C
alpha: 46.7 °(neat)
density: 0.89
refractive index: 1.4235-1.4255
Fp: 10 °C
storage temp.: Poison room
Vapour Pressure: 17.3 mmHg at 25°C 
Categories: Alcohols, Hydroxy Esters and Derivatives;Chiral Compounds;Acetylenes;Acetylenic Alcohols & Their Derivatives;Chiral Building Blocks;Simple Alcohols (Chiral);Synthetic Organic Chemistry;Chiral Compound;Alcohols;Chiral Building Blocks;Organic Building Blocks
Synonyms: r-3-butyn-2-ol98%;(R)-(+)-1-BUTYN-3-OL;(R)-(+)-3-BUTYN-2-OL;(R)-3-BUTYN-2-OL;(R)-3-BUTYNE-2-OL;(R)-but-3-yn-2-ol;(R)-(+)-3-Butyn-2-ol,99%;(2R)-But-3-yn-2-ol
The Structure of (R)-(+)-3-BUTYN-2-OL(42969-65-3):

Hazard Codes: F,T+
Risk Statements: 11-23/24/25-36/37/38-28-24-43-41-40-26/28-10
11:  Highly Flammable 
23/24/25:  Toxic by inhalation, in contact with skin and if swallowed 
36/37/38:  Irritating to eyes, respiratory system and skin 
28:  Very Toxic if swallowed 
24:  Toxic in contact with skin 
43:  May cause sensitization by skin contact 
41:  Risk of serious damage to eyes 
40:  Limited evidence of a carcinogenic effect 
26/28:  Very Toxic by inhalation and if swallowed 
10:  Flammable 
Safety Statements: 16-23-26-36/37/39-45-28A-24
16:  Keep away from sources of ignition - No smoking 
23:  Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) 
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36/37/39:  Wear suitable protective clothing, gloves and eye/face protection 
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) 
24:  Avoid contact with skin 
RIDADR: 1986
HazardClass: 6.1
PackingGroup: II

1. First Aid Measures
Ingestion:
Seek medical assistance.
Inhalation:
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes.
Skin:
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
Eyes:
In case of contact with substance, immediately flush with running water for at least 20 minutes.