156969-34-5

• 

• Basic information

  1. Product Name: 1H-Imidazole,2-methyl-1-(1-oxo-2-butynyl)-(9CI)
  2. Synonyms: 1H-Imidazole,2-methyl-1-(1-oxo-2-butynyl)-(9CI)
  3. CAS NO:156969-34-5
  4. Molecular Formula: C8H8N2O
  5. Molecular Weight: 148.16192
  6. EINECS: N/A
  7. Product Categories: AMINETERTIARY
  8. Mol File: 156969-34-5.mol
  9. Article Data: 1

• Chemical Properties

  1. Melting Point: N/A
  2. Boiling Point: 286.0±23.0 °C(Predicted)
  3. Flash Point: N/A
  4. Appearance: /
  5. Density: 1.03±0.1 g/cm3(Predicted)
  6. Refractive Index: N/A
  7. Storage Temp.: N/A
  8. Solubility: N/A
  9. PKA: 3.74±0.69(Predicted)
  10. CAS DataBase Reference: 1H-Imidazole,2-methyl-1-(1-oxo-2-butynyl)-(9CI)(CAS DataBase Reference)
  11. NIST Chemistry Reference: 1H-Imidazole,2-methyl-1-(1-oxo-2-butynyl)-(9CI)(156969-34-5)
  12. EPA Substance Registry System: 1H-Imidazole,2-methyl-1-(1-oxo-2-butynyl)-(9CI)(156969-34-5)

• 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: 156969-34-5(Hazardous Substances Data)

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156969-34-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156969-34-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,9,6 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156969-34:
(8*1)+(7*5)+(6*6)+(5*9)+(4*6)+(3*9)+(2*3)+(1*4)=185
185 % 10 = 5
So 156969-34-5 is a valid CAS Registry Number.

156969-34-5Upstream product

• 693-98-1 2-methylimidazole 
• 590-93-2 2-Butynoic acid 

156969-34-5Downstream Products

156969-34-5Relevant articles and documents

The Pyrolytic Rearrangement of 1-Alkynoyl-3-methylpyrazoles: Synthesis of Pyrazolopyridin-5-ols and Related Compounds

Brown, Roger F. C.,Eastwood, Frank W.,Fallon, Gary D.,Lee, Swee Choo,McGeary, Ross P.

, p. 991 - 1008 (2007/10/02)

Flash vacuum pyrolysis of 1-(alkyn-2'-oyl)-3-methylpyrazoles at 650 deg/0.03 mm forms pyrazolopyridin-5-ols, often in high yield, which may bear substituents at C2, C3 or C7.In the absence of a 3-methyl group in the precursor, N-ethynylpyrazoles are formed in low yield.The formation of both types of product is interpreted as involving 3-(N-pyrazolyl)propadienones formed by N1 --> N2 migration of the N-alkynoyl group with inversion of the three-carbon chain.The fused-ring structure of 2-methylpyrazolopyridin-5-ol (25) was established by X-ray crystallography of the O-benzoyl derivative (27).

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