N,N-(1-naphthyl)carbodiimide, also known as 1-Naphthylcarbodiimide (NCB), is a chemical compound with the molecular formula C11H8N2. It is a white crystalline solid that is widely used in organic synthesis, particularly in the formation of amide and ester bonds. NCB acts as a coupling agent, promoting the reaction between carboxylic acids and amines to form amides, and between carboxylic acids and alcohols to form esters. It is also used in the synthesis of peptides and other biologically active molecules. Due to its reactivity, it is important to handle NCB with care, as it can be hazardous and may cause skin and eye irritation.

742-16-5

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Basic information
1. Product Name: N,N-(1-naphthyl)carbodiimide
2. Synonyms: N,N-(1-naphthyl)carbodiimide
3. CAS NO:742-16-5
4. Molecular Formula:
5. Molecular Weight: 294.356
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: N,N-(1-naphthyl)carbodiimide(CAS DataBase Reference)
10. NIST Chemistry Reference: N,N-(1-naphthyl)carbodiimide(742-16-5)
11. EPA Substance Registry System: N,N-(1-naphthyl)carbodiimide(742-16-5)
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: 742-16-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 742-16-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 742-16:
(5*7)+(4*4)+(3*2)+(2*1)+(1*6)=65
65 % 10 = 5
So 742-16-5 is a valid CAS Registry Number.

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