U+3373 "㍳" Square Au Unicode Character
U+3373 "㍳" Square Au is a precomposed CJK (Chinese, Japanese, and Korean) square symbol representing the abbreviation for the chemical element gold, using its Latin symbol "Au" enclosed within a square-shaped glyph. This character belongs to the CJK Compatibility block of Unicode, which was designed to maintain compatibility with older East Asian character encoding standards, and it is primarily used in contexts such as scientific notation, unit labels, or compact text displays where a single square block is preferred over two separate letters. In practice, "㍳" serves as a typographic convenience in Japanese and Chinese text, allowing the element symbol for gold to appear as a single, visually cohesive unit rather than as two individual characters.
General Properties
| Code Point | U+3373 |
| Version Added | 1.1 |
| Name | Square Au |
| Block | CJK Compatibility |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Square |
| Decomposition Mapping | "A" U+0041 Latin Capital Letter A "U" U+0055 Latin Capital Letter U |
Encodings
| HTML Decimal Encoding | ㍳ |
| HTML Hex Encoding | ㍳ |
| UTF-8 Encoding | 0xE3 0x8D 0xB3 |
| UTF-16 Encoding | 0x3373 |
| UTF-32 Encoding | 0x00003373 |
| C/C++/Java Escape | \u3373 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Wide |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "a" U+0061 Latin Small Letter A "u" U+0075 Latin Small Letter U |
| NFKC Simple Casefold | "a" U+0061 Latin Small Letter A "u" U+0075 Latin Small Letter U |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |