p-Toluolsulfonyl-acetaldehyd-hemihydrat, also known as p-toluenesulfonyl acetaldehyde hemiacetal, is a chemical compound with the molecular formula C9H12O3S. It is derived from acetaldehyde, where one of the hydrogen atoms is replaced by a p-toluenesulfonyl group. p-Toluolsulfonyl-acetaldehyd-hemihydrat is an intermediate in organic synthesis and is used in the preparation of various pharmaceuticals and agrochemicals. It is a colorless to pale yellow solid, soluble in organic solvents, and has a pungent odor. Due to its reactivity, it is typically handled under controlled conditions to prevent unwanted side reactions.

6673-74-1

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Basic information
1. Product Name: p-Toluolsulfonyl-acetaldehyd-hemihydrat
2. Synonyms:
3. CAS NO:6673-74-1
4. Molecular Formula:
5. Molecular Weight: 414.5
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: p-Toluolsulfonyl-acetaldehyd-hemihydrat(CAS DataBase Reference)
10. NIST Chemistry Reference: p-Toluolsulfonyl-acetaldehyd-hemihydrat(6673-74-1)
11. EPA Substance Registry System: p-Toluolsulfonyl-acetaldehyd-hemihydrat(6673-74-1)
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: 6673-74-1(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6673-74-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,7 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6673-74:
(6*6)+(5*6)+(4*7)+(3*3)+(2*7)+(1*4)=121
121 % 10 = 1
So 6673-74-1 is a valid CAS Registry Number.

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