"Blue 2", also known as Indigo Carmine or Food Blue 2, is a synthetic water-soluble azo dye used as a colorant in various applications, including food, pharmaceuticals, and cosmetics. It is characterized by its bright blue color and is identified by the E number E132 in the European Union. The chemical structure of Blue 2 consists of two indigo molecules linked by an azo group, which gives it its distinctive hue. It is important to note that while it is approved for use in certain products, there are ongoing discussions and regulations regarding its safety, particularly in relation to potential health concerns.

1342-10-5

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Basic information
1. Product Name: Blue 2
2. Synonyms: Blue 2
3. CAS NO:1342-10-5
4. Molecular Formula:
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 718.13°C at 760 mmHg
3. Flash Point: 388.111°C
4. Appearance: /
5. Density: 1.122g/cm³
6. Vapor Pressure: 0mmHg at 25°C
7. Refractive Index: 1.586
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: Blue 2(CAS DataBase Reference)
11. NIST Chemistry Reference: Blue 2(1342-10-5)
12. EPA Substance Registry System: Blue 2(1342-10-5)
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: 1342-10-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1342-10-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,4 and 2 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1342-10:
(6*1)+(5*3)+(4*4)+(3*2)+(2*1)+(1*0)=45
45 % 10 = 5
So 1342-10-5 is a valid CAS Registry Number.

InChI:InChI=1/C36H45N3O3/c1-6-10-11-12-13-16-24-39-26(5)33(28-18-14-15-20-31(28)39)36(34-29(35(40)42-36)19-17-23-37-34)30-22-21-27(38(7-2)8-3)25-32(30)41-9-4/h14-15,17-23,25H,6-13,16,24H2,1-5H3

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