4-Hydroxybut-2-ynal, also known as 4-hydroxy-2-butynal or but-2-yn-4-ol, is an organic compound characterized by its molecular formula C4H6O. It features a hydroxyl group (-OH) attached to the fourth carbon atom and a triple bond between the second and third carbon atoms, which gives it a unique structure. This aldehyde is known for its reactivity due to the presence of the carbonyl group (C=O) and the triple bond, making it a versatile building block in organic synthesis. It can be used in the preparation of various pharmaceuticals, agrochemicals, and other specialty chemicals. The compound is also notable for its potential applications in the synthesis of natural products and as a precursor in the production of certain polymers.

50560-69-5

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Basic information
1. Product Name: 4-hydroxybut-2-ynal
2. Synonyms:
3. CAS NO:50560-69-5
4. Molecular Formula: C₄H₄O₂
5. Molecular Weight: 84.0734
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 50560-69-5.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 222.1°C at 760 mmHg
3. Flash Point: 102.4°C
4. Appearance: N/A
5. Density: 1.156g/cm³
6. Vapor Pressure: 0.0212mmHg at 25°C
7. Refractive Index: 1.47
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: 4-hydroxybut-2-ynal(CAS DataBase Reference)
11. NIST Chemistry Reference: 4-hydroxybut-2-ynal(50560-69-5)
12. EPA Substance Registry System: 4-hydroxybut-2-ynal(50560-69-5)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 50560-69-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 50560-69-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,5,6 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 50560-69:
(7*5)+(6*0)+(5*5)+(4*6)+(3*0)+(2*6)+(1*9)=105
105 % 10 = 5
So 50560-69-5 is a valid CAS Registry Number.

50560-69-5Upstream product

18350-44-2 4,4-diethoxy-but-2-yn-1-ol

50560-69-5Downstream Products

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