C.I. Vat Violet 1, also known as Vat Violet 10, is a synthetic organic compound used as a blue-violet dye in various applications, including textiles, plastics, and paints. It is a vat dye, which means it is insoluble in water and requires a reduction process to be applied to fibers. The chemical structure of C.I. Vat Violet 1 consists of a benzothiazole-based chromophore, which gives it its characteristic color. Due to its high color strength and fastness properties, it is widely used in the dyeing and printing industries. However, it is important to note that C.I. Vat Violet 1 may have potential health and environmental concerns, and proper handling and disposal methods should be followed to minimize risks.

81-28-7

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Basic information
1. Product Name: C.I. Vat violet 1
2. Synonyms: C.I. VAT VIOLET 1;Tinon Violet 4R;Brilliant Violet K;Tinon Violet 2RB;Cibanone Violet 2R;Cibanone Violet 4R;Indofast Violet Lake;Ahcovat Brilliant Violet 4R;Vat Bright Violet K;Dichloroisoviolanthrone;C.I Vat Violet 1;Calcoloid Violet 4RD;Calcoloid Violet 4RP;Tinon Violet B 4RP;Arlanthrene Violet 4R;Sandothrene Violet 4R;Cibanone Violet F 4R;Symuler Fast Violet R;Carbanthrene Violet 2R;Vat Brilliant Violet K;Carbanthrene Violet 2RP;Cibanone Violet F 2RB;Vat Brilliant Violet KD;Vat Brilliant Violet KP;Sandothrene Violet N 4R;Violet kypova 1 [Czech];Ponolith Fast Violet 4RN;Sandothrene Violet N 2RB;Violet kypova 1;Caledon printing purple 4R;Caledon brilliant purple 4R;Ahcovat Brilliant Violet 2R;Caledon brilliant purple 4RP;Benzadone brilliant purple 2R;Benzadone brilliant purple 4R;Vat Brilliant Violet potassium;Atic Vat Brilliant Purple 4R;Amanthrene Brilliant Violet RR;Indanthren Brilliant Violet RR;Fenanthren Brilliant Violet 2R;Fenanthren Brilliant Violet 4R;Indanthren Brilliant Violet 4R;Nyanthrene Brilliant Violet 4R;Indanthrene Brilliant Violet RR;Nihonthrene Brilliant Violet RR;Indanthrene Brilliant Violet 4R;Nihonthrene Brilliant Violet 4R;Carbanthrene Brilliant Violet 4R;Indanthren Printing Violet F 4R;Solanthrene Brilliant Violet F 2R;EINECS 215-380-5;Ahcovat Printing Brilliant Violet 4R;NSC 17267;C.I. 60010;Benzo(rst)phenanthro(10,1,2-cde)pentaphene-9,18-dione, dichloro-;19,33-dichlorononacyclo[18.10.2.22,5.03,16.04,13.06,11.017,31.021,26.028,32]tetratriaconta-1(31),2(34),3(16),4(13),5(33),6,8,10,14,17,19,21,23,25,28(32),29-hexadecaene-12,27-dione;Dichlorobenzo(rst)phenanthro(10,1,2-cde)pentaphene-9,18-dione;Dinaphtho(1,2,3-cd:1',2',3'-lm)perylene-9,18-dione, dichloro-;Dichlorobenzo[rst]phenanthro[10,1,2-cde]pentaphene-9,18-dione;Benzo[rst]phenanthro[10,1,2-cde]pentaphene-9,18-dione, dichloro-;Dinaphtho[1,2,3-cd:1',2',3'-lm]perylene-9,18-dione, dichloro-;CI Vat Violet 1;5,14-Dichloroisoviolanthrone;Color Index No. 60010;Color Index Number 60010;Colour Index No. 60010;Colour Index Number 60010;C34H14Cl2O2;SCHEMBL21436352;DTXSID80892086;CI 60010;LS-38856;Benzo[rst]phenanthro[10,1, 2-cde]pentaphene-9,18-dione, dichloro-;81-28-7
3. CAS NO:81-28-7
4. Molecular Formula: C34H14Cl2O2
5. Molecular Weight: 525.4
6. EINECS: 215-380-5
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: C.I. Vat violet 1(CAS DataBase Reference)
10. NIST Chemistry Reference: C.I. Vat violet 1(81-28-7)
11. EPA Substance Registry System: C.I. Vat violet 1(81-28-7)
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: 81-28-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 81-28-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81-28:
(4*8)+(3*1)+(2*2)+(1*8)=47
47 % 10 = 7
So 81-28-7 is a valid CAS Registry Number.

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