254899-91-7Relevant academic research and scientific papers
Method for preparing vitamin A
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Page column 5, (2010/01/31)
The invention relates to a process for making vitamin A from ethynyl-retro-α-ionol using an allene acetate as intermediate.
ethynyl-retro-α-ionol acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
254899-91-7
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Basic information
- Product Name: ethynyl-retro-α-ionol acetate
- Synonyms: ethynyl-retro-α-ionol acetate
- CAS NO:254899-91-7
- Molecular Formula:
- Molecular Weight: 260.376
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: ethynyl-retro-α-ionol acetate(CAS DataBase Reference)
- NIST Chemistry Reference: ethynyl-retro-α-ionol acetate(254899-91-7)
- EPA Substance Registry System: ethynyl-retro-α-ionol acetate(254899-91-7)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 254899-91-7(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 254899-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,8,9 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.Calculate Digit Verification of CAS Registry Number 254899-91:
(8*2)+(7*5)+(6*4)+(5*8)+(4*9)+(3*9)+(2*9)+(1*1)=197
197 % 10 = 7
So 254899-91-7 is a valid CAS Registry Number.
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ethynyl-retro-α-ionol acetate
