C.I. Direct Orange 31 (CAS 6420-03-7) — formula C31H26N6NaO7S+, molecular weight 649.6; category dyes and pigments.
C.I. Direct Orange 31 (CAS 6420-03-7) is a chemical raw material in the dyes and pigments category. Its molecular formula C31H26N6NaO7S+ comprises 31 C, 26 H, 6 N, 1 Na, 7 O, 1 S atoms. Its molecular weight is about 649.6. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 6420-03-7 |
|---|---|
| Molecular Formula | C31H26N6NaO7S+ |
| Molecular Weight | 649.6 |
| Category | Dyes & Pigments |
C.I. Direct Orange 31 is a colorant or pigment compound with CAS registry number 6420-03-7 and molecular formula C31H26N6NaO7S+ (molecular weight 649.6), belonging to the dyes and pigments segment of chemical raw materials.
CAS number: 6420-03-7
Its molecular formula C31H26N6NaO7S+ comprises 31 C, 26 H, 6 N, 1 Na, 7 O, 1 S atoms.
Also known as: C.I. Direct Orange 31 · C.I.直接橙31
Category: dyes and pigments
The CAS registry number of C.I. Direct Orange 31 is 6420-03-7.
Molecular formula C31H26N6NaO7S+, molecular weight 649.6.
It is also registered under: C.I. Direct Orange 31, C.I.直接橙31.
Category: Dyes & Pigments.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for C.I. Direct Orange 31 (CAS 6420-03-7), compiled from public chemistry databases.
| CAS Number | 6420-03-7 |
|---|---|
| PubChem CID | 135502251 |
| Molecular Formula | C31H26N6NaO7S+ |
| IUPAC Name | sodium 2-hydroxy-5-[[2-methyl-4-[3-methyl-4-[[3-methyl-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-yl]diazenyl]phenyl]phenyl]diazenyl]benzoic acid |
| Molecular Weight | 649.6 |
|---|---|
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 12 |
| Rotatable Bond Count | 8 |
| Exact Mass | 649.14813765 |
| Monoisotopic Mass | 649.14813765 |
| Topological Polar Surface Area | 202 |
| Heavy Atom Count | 46 |
NSC326199; C.I. 23655; Direct Fast Orange PRN; 6420-03-7; Diazol Brilliant Orange RN; Diaphtamine Fast Orange PRS; NSC-326199; C.I. Direct Orange 31, disodium salt
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: C.I.直接橙31